Do Springbak® Springsoles fit the Nike KD 18?

Yes — they fit as-is. Removable liner in stock form. Liner out, Springsole flat, liner back on top. Trimming: Try it untrimmed first. Trim only if needed for a flat fit, in very small amounts from the toe or forefoot, and recheck after each trim. Never trim the heel; do not unnecessarily narrow the sides. Sizing: order your US shoe size — each pair covers a size range; try it untrimmed and trim only the toe or forefoot if needed. What stays the same: Designed to minimize changes; confirm actual fit, lockdown, lace tension and feel in your own pair.

Do Springbak® Springsoles fit the Nike Kobe 6 Protro / low-cut guard models?

Yes — they fit with a small toe trim. Thin removable liner; interior volume is deliberately snug. Liner out, Springsole in flat, liner on top — no other changes. Trimming: Try it untrimmed first. Trim only if needed for a flat fit, in very small amounts from the toe or forefoot, and recheck after each trim. Never trim the heel; do not unnecessarily narrow the sides. Sizing: order your US shoe size — each pair covers a size range; try it untrimmed and trim only the toe or forefoot if needed. What stays the same: Designed to minimize changes; confirm actual fit, lockdown, lace tension and feel in your own pair.

Do Springbak® Springsoles fit the Nike / Jordan Air Jordan XXXIX?

Yes — they fit as-is. Removable liner above the plate and cushioning unit. Liner out, Springsole flat on the footbed above the plate, liner back on top. Never under the plate. Trimming: Try it untrimmed first. Trim only if needed for a flat fit, in very small amounts from the toe or forefoot, and recheck after each trim. Never trim the heel; do not unnecessarily narrow the sides. Sizing: order your US shoe size — each pair covers a size range; try it untrimmed and trim only the toe or forefoot if needed. What stays the same: Designed to minimize changes; confirm actual fit, lockdown, lace tension and feel in your own pair.

Do Springbak® Springsoles fit the adidas Harden Vol. 9?

Yes — they fit as-is. Removable liner in stock form. Liner out, Springsole flat on the footbed, liner back on top. Trimming: Try it untrimmed first. Trim only if needed for a flat fit, in very small amounts from the toe or forefoot, and recheck after each trim. Never trim the heel; do not unnecessarily narrow the sides. Sizing: order your US shoe size — each pair covers a size range; try it untrimmed and trim only the toe or forefoot if needed. What stays the same: Designed to minimize changes; confirm actual fit, lockdown, lace tension and feel in your own pair.

Do Springbak® Springsoles fit the adidas Dame 9 / Anthony Edwards 1?

Yes — they fit as-is. Removable liner in stock form. Liner out, Springsole in, liner on top. Trimming: Try it untrimmed first. Trim only if needed for a flat fit, in very small amounts from the toe or forefoot, and recheck after each trim. Never trim the heel; do not unnecessarily narrow the sides. Sizing: order your US shoe size — each pair covers a size range; try it untrimmed and trim only the toe or forefoot if needed. What stays the same: Designed to minimize changes; confirm actual fit, lockdown, lace tension and feel in your own pair.

Do Springbak® Springsoles fit the Under Armour Curry 12?

Yes — they fit as-is. Removable liner, and one of the thinner footbeds in the category. Liner out, Springsole in, liner back on top. Trimming: Try it untrimmed first. Trim only if needed for a flat fit, in very small amounts from the toe or forefoot, and recheck after each trim. Never trim the heel; do not unnecessarily narrow the sides. Sizing: order your US shoe size — each pair covers a size range; try it untrimmed and trim only the toe or forefoot if needed. What stays the same: Designed to minimize changes; confirm actual fit, lockdown, lace tension and feel in your own pair.

Do Springbak® Springsoles fit the New Balance TWO WXY v5?

Yes — they fit as-is. Removable liner in stock form. Liner out, Springsole flat, liner on top. Trimming: Try it untrimmed first. Trim only if needed for a flat fit, in very small amounts from the toe or forefoot, and recheck after each trim. Never trim the heel; do not unnecessarily narrow the sides. Sizing: order your US shoe size — each pair covers a size range; try it untrimmed and trim only the toe or forefoot if needed. What stays the same: Designed to minimize changes; confirm actual fit, lockdown, lace tension and feel in your own pair.

Do Springbak® Springsoles fit the Puma MB.04 / All-Pro Nitro?

Yes — they fit as-is. Removable liner in stock form. Liner out, Springsole flat on the footbed, liner back on top. Trimming: Try it untrimmed first. Trim only if needed for a flat fit, in very small amounts from the toe or forefoot, and recheck after each trim. Never trim the heel; do not unnecessarily narrow the sides. Sizing: order your US shoe size — each pair covers a size range; try it untrimmed and trim only the toe or forefoot if needed. What stays the same: Designed to minimize changes; confirm actual fit, lockdown, lace tension and feel in your own pair.

Basketball Insoles for Jumping & Cutting

What basketball demands of your feet

Repeat vertical jumping for rebounds, blocks and finishes
Hard lateral cuts and defensive slides on a rigid hardwood surface
Constant deceleration — the most punishing part of every possession
40-plus minutes of load in a shoe designed for support, not energy return
Back-to-back games and multi-game tournament weekends

Why Springsoles fit this sport

A resilient layer designed for energy return

Springsoles are made from 1,4-polybutadiene, one of the most resilient materials available. The layer is designed to compress under load and return toward its shape — energy return is the material's intended function, not a measured basketball result.

Only 3/32 of an inch

At 3/32" thick they fit according to your shoe’s liner type. The 3/32-inch layer is designed to minimize changes to shoe fit. Confirm actual fit, heel position, lockdown, lace tension, plate feel and ankle-brace compatibility in your own basketball shoes before training or competition.

Built for a full game of jumps and cuts

The layer is designed to keep returning toward its shape across a long game. Springbak® has not measured late-game fatigue, repeated-jump performance or fourth-quarter results in basketball; any difference players describe is their own reported experience, not a lab measurement.

Works with the shoe you already play in

Unlike many basketball shoe inserts that replace the factory liner, we add a layer; we do not replace your insole. Nothing goes underneath an internal plate or cushioning unit; compatibility with carbon-plated, air-unit and heavily cushioned shoes varies by model, so confirm the Springsole lies flat and check fit and lockdown in your own shoe.

The technology, materials and four U.S. patents behind Springsoles are detailed on How it works.

Where it shows up on the floor

Two basketball players contesting a rebound above the rim under arena lights — Rebounds demand repeated jumps from changing positions throughout a game — one of the basketball movements Springsoles are designed to be used under.

Close-up of basketball shoes gripping glossy hardwood during a hard defensive slide — Defensive slides involve repeated stops and changes of direction. Springsoles are intended for use beneath the foot during those movements; change-of-direction speed has not been directly measured.

What actually makes the best insoles for basketball

Most inserts are sold on how soft they feel in the store. On a hard court the question is what the layer under your foot does with the force of every stop — absorb it, or give it back.

Insole types compared for basketball: what each one does with impact force.
Insole type	On court	Why
Thick cushioned foam insoles	Cushioning first; durability varies	Many thick foam insoles are designed mainly to cushion impact, and some compress noticeably over a season of jump volume. Thicker models can also raise the foot inside the shoe, which may change how a low-cut basketball shoe holds you. Behavior varies by model and material.
Gel heel pads	Comfort, not return	Gel heel pads are typically designed to spread impact under the heel rather than for energy return, and depending on the model their bulk can change how a low-profile basketball shoe holds your foot.
Full-length carbon-plate insoles	Rebound, but your insole comes out	A moulded plate is designed to flex and spring back. Because it typically replaces your shoe's sock liner, footbed shape and internal volume can change, and lockdown may feel different depending on the model and shoe.
Rigid arch orthotics	Support, prescribed use	A different category: medical/support devices used according to clinician guidance. They are generally designed for support and positioning rather than marketed for energy return; designs vary. Keep a prescribed orthotic and ask your clinician before adding any layer.
Springbak® Springsoles	Resilient layer at 3/32 of an inch	A 1,4-polybutadiene layer designed to compress under load and return toward its shape — energy return is the intended material function, not a measured basketball result — at a thickness thin enough to fit according to your shoe’s liner type.

Fit checker

Will it fit my basketball shoe?

Pick the shoe you actually hoop in and see how a Springsole typically goes in, when trimming may be needed, and what it is designed to leave in place. These are the ten basketball shoes we get asked about most.

1. Your brand2. Your model

Every verdict assumes a stock shoe. Manufacturers revise footbeds between model years. Try the Springsole without trimming first. If the factory liner is removable, remove it and place the Springsole underneath it. If the liner is lightly glued, gently pull to see whether it releases cleanly; if it does, place the Springsole underneath it. If the liner begins to tear, stretch, deform, or resist removal, stop and leave it in place. Put the Springsole on top instead. Never force out a firmly bonded or stitched liner.

Fits as-is

Nike LeBron XXII

Cushioned forward / all-around shoe with a large foam and air package

Footbed: Removable liner sitting above the cushioning package in stock form.
Where the Springsole goes: Lift the liner out, lay the Springsole flat on the footbed printed side up, then drop the liner back on top. Nothing goes under the cushioning unit.
Trimming: Try it untrimmed first. Trim only if needed for a flat fit, in very small amounts from the toe or forefoot, and recheck after each trim. Never trim the heel; do not unnecessarily narrow the sides.
What you keep: Designed to minimize changes; confirm actual fit, lockdown, lace tension and feel in your own pair.

See the full fitting steps Pick my size

Springbak® does not replace your shoe. It adds one 3/32" resilient layer under your foot inside the shoe you already race and play in. Springbak beneath your feet.

All ten basketball shoes, side by side

The same verdicts in one static table — handy if you are kitting out a whole roster where everyone plays in something different.

Fit verdict, footbed type, trim guidance and sizing for each basketball shoe covered by the fit picker.
Shoe	Fit verdict	Footbed	Trim guidance	Sizing
Nike LeBron XXIICushioned forward / all-around shoe with a large foam and air package	Fits as-is	Removable liner sitting above the cushioning package in stock form.	Try it untrimmed first. Trim only if needed for a flat fit, in very small amounts from the toe or forefoot, and recheck after each trim. Never trim the heel; do not unnecessarily narrow the sides.	Order your US shoe size. Each pair covers a size range; try it untrimmed before trimming the toe or forefoot only if needed.
Nike KD 18All-position shoe with a full-length foam midsole	Fits as-is	Removable liner in stock form.	Try it untrimmed first. Trim only if needed for a flat fit, in very small amounts from the toe or forefoot, and recheck after each trim. Never trim the heel; do not unnecessarily narrow the sides.	Order your US shoe size. Each pair covers a size range; try it untrimmed before trimming the toe or forefoot only if needed.
Nike Kobe 6 Protro / low-cut guard modelsLow-cut quick-transition guard shoe	Fits — trim the toe	Thin removable liner; interior volume is deliberately snug.	Try it untrimmed first. Trim only if needed for a flat fit, in very small amounts from the toe or forefoot, and recheck after each trim. Never trim the heel; do not unnecessarily narrow the sides.	Order your US shoe size. Each pair covers a size range; try it untrimmed before trimming the toe or forefoot only if needed.
Nike / Jordan Air Jordan XXXIXSignature performance shoe with a plate and air unit	Fits as-is	Removable liner above the plate and cushioning unit.	Try it untrimmed first. Trim only if needed for a flat fit, in very small amounts from the toe or forefoot, and recheck after each trim. Never trim the heel; do not unnecessarily narrow the sides.	Order your US shoe size. Each pair covers a size range; try it untrimmed before trimming the toe or forefoot only if needed.
adidas Harden Vol. 9Guard shoe with a full-length cushioning strip	Fits as-is	Removable liner in stock form.	Try it untrimmed first. Trim only if needed for a flat fit, in very small amounts from the toe or forefoot, and recheck after each trim. Never trim the heel; do not unnecessarily narrow the sides.	Order your US shoe size. Each pair covers a size range; try it untrimmed before trimming the toe or forefoot only if needed.
adidas Dame 9 / Anthony Edwards 1Team shoe built for cutting and stopping	Fits as-is	Removable liner in stock form.	Try it untrimmed first. Trim only if needed for a flat fit, in very small amounts from the toe or forefoot, and recheck after each trim. Never trim the heel; do not unnecessarily narrow the sides.	Order your US shoe size. Each pair covers a size range; try it untrimmed before trimming the toe or forefoot only if needed.
Under Armour Curry 12Low-profile guard shoe with a thin factory footbed	Fits as-is	Removable liner, and one of the thinner footbeds in the category.	Try it untrimmed first. Trim only if needed for a flat fit, in very small amounts from the toe or forefoot, and recheck after each trim. Never trim the heel; do not unnecessarily narrow the sides.	Order your US shoe size. Each pair covers a size range; try it untrimmed before trimming the toe or forefoot only if needed.
New Balance TWO WXY v5Supportive shoe for high-volume guards and wings	Fits as-is	Removable liner in stock form.	Try it untrimmed first. Trim only if needed for a flat fit, in very small amounts from the toe or forefoot, and recheck after each trim. Never trim the heel; do not unnecessarily narrow the sides.	Order your US shoe size. Each pair covers a size range; try it untrimmed before trimming the toe or forefoot only if needed.
Puma MB.04 / All-Pro NitroNitro-foam guard shoe	Fits as-is	Removable liner in stock form.	Try it untrimmed first. Trim only if needed for a flat fit, in very small amounts from the toe or forefoot, and recheck after each trim. Never trim the heel; do not unnecessarily narrow the sides.	Order your US shoe size. Each pair covers a size range; try it untrimmed before trimming the toe or forefoot only if needed.
Various Team-issue and value models with a glued-in linerSchool-issue shoes and budget models with a fixed footbed	Check your pair first	Some team and value models glue or stitch the liner down.	Try it untrimmed first. Trim only if needed for a flat fit, in very small amounts from the toe or forefoot, and recheck after each trim. Never trim the heel; do not unnecessarily narrow the sides.	Order your US shoe size. Each pair covers a size range; try it untrimmed before trimming the toe or forefoot only if needed.

Fit, trim & sizing FAQ

Questions the fit checker answers

What does the "fits as-is" verdict mean for my basketball shoes?

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"Fits as-is" means to try the stock model with the 3/32" Springsole untrimmed first. "Fits — trim the toe" means a small toe or forefoot trim may be needed only after that first fit check. "Check your pair first" means the liner may vary by model year.

How much do I trim, and where?

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Try the Springsole without trimming first. Trim only if needed for a flat fit, starting at the toe/forefoot and removing a very small amount at a time. Do not trim the heel and do not unnecessarily narrow the sides. Recheck the fit after every small trim.

Does the Springsole go above or below my insole?

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Try the Springsole without trimming first. If the factory liner is removable, remove it and place the Springsole underneath it. If the liner is lightly glued, gently pull to see whether it releases cleanly; if it does, place the Springsole underneath it. If the liner begins to tear, stretch, deform, or resist removal, stop and leave it in place. Put the Springsole on top instead. Never force out a firmly bonded or stitched liner.

What size Springsole do I order for my basketball shoes?

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Order your normal shoe size. Current ranges: US men’s 6/7, 8/9, 10/11; US women’s 7/8, 9/10, 11/12; EU 38/40, 41/42, 43/45; UK 5/6, 7/8, 9/10. Each pair covers a size range. Try it untrimmed first. Trim only if needed for a flat fit, in very small amounts from the toe or forefoot, and recheck after each trim. Do not trim the heel and do not unnecessarily narrow the sides.

Will adding a layer change how my basketball shoes fit?

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The layer is an even 3/32 of an inch from heel to toe. The 3/32-inch layer is designed to minimize changes to shoe fit. Confirm actual fit, heel position, lockdown, lace tension, plate feel and ankle-brace compatibility in your own basketball shoes before training or competition. Springbak® adds to the shoe you already play in — we do not replace your insole and we do not replace your shoe.

My model is not in the list — can I still use them?

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Yes. The picker covers the models we are asked about most. Try the Springsole without trimming first. If the factory liner is removable, remove it and place the Springsole underneath it. If the liner is lightly glued, gently pull to see whether it releases cleanly; if it does, place the Springsole underneath it. If the liner begins to tear, stretch, deform, or resist removal, stop and leave it in place. Put the Springsole on top instead. Never force out a firmly bonded or stitched liner. If you are unsure, email info@springbak.net or call 951-277-3000 with your exact model.

Insole vs. midsole layer

Full-length replacement insoles vs. a Springbak® midsole layer

Almost every performance insert on the market is a replacement insole: you pull your shoe's sock liner out and put theirs in instead. Springbak® works the other way — it is a thin midsole layer that goes in as well as your insole, so your factory insole can stay in the shoe. For a hooper that matters twice over: your basketball shoe was engineered around its own footbed, and you land on it hundreds of times a game.

Full-length replacement insoles vs. a Springbak® midsole layer
Product category	What it is	Where it sits	Typical thickness	What it does with impact
Springbak® Springsoles	A 3/32" resilient 1,4-polybutadiene sheet, trimmed only if needed for a flat fit, made in the USA and covered by four U.S. patents.	Added under your shoe's own insole (or on top of a sewn-in pad). Your factory insole stays in the shoe.	3/32 in (≈2.4 mm), even from heel to toe	A resilient layer designed to compress under load and return toward its shape; energy return is the intended material function, not a measured basketball result.
Sources Springbak® product description (springbak.net) How Springsoles work — Springbak® Force plate findings — Springbak®
Carbon-plate performance insoles (e.g. VKTRY VK Insoles)	A moulded, sport-specific carbon-fiber plate with a foam top cover, fitted by shoe size and athlete weight.	Replaces your shoe's insole — the factory sock liner comes out and stays out.	Full-length insole stack; considerably taller than a bare midsole layer	Flexes and rebounds as a plate. Because it replaces the insole, it also changes footbed shape and internal shoe volume.
Sources VKTRY — official site VKTRY — how VK insoles work
Cushioned replacement insoles (e.g. Spenco)	Full-length foam, gel or PU insoles built around comfort, arch shape and pressure relief.	Replaces your shoe's insole.	Typically several millimetres, often heel-loaded	Designed primarily to absorb and spread impact rather than return it.
Sources Spenco — official site
Viscoelastic shock-absorbing insoles (e.g. Sorbothane)	Full-length inserts made from a viscoelastic polymer specified for shock absorption and vibration damping.	Replaces your shoe's insole.	Full-length insole thickness, varies by model	Damps impact energy by design — that is the stated purpose of a viscoelastic material.
Sources Sorbothane — official site
Structured support insoles (e.g. Superfeet, custom orthotics)	A rigid or semi-rigid shell with arch and heel posting, sometimes prescribed by a practitioner.	Replaces your shoe's insole.	Full-length shell plus posting	Generally built to support and position the foot rather than marketed for energy return; prescribed orthotics are medical/support devices used according to clinician guidance.
Sources Superfeet — official site
Your factory insole / sock liner	The die-cut foam liner your shoe was designed and fitted around.	Already in the shoe — and with Springbak®, it stays there.	≈1–5 mm depending on the shoe	Typically a comfort and fit layer that is not marketed for engineered energy return; construction varies by shoe model.
Sources Springbak® installation guidance for factory footbeds

We add, we don't replace

Springbak® is not a new insole and not a new shoe — you add one thin resilient layer rather than replacing the footbed. The 3/32-inch layer is designed to minimize changes to shoe fit. Confirm actual fit, heel position, lockdown, lace tension, plate feel and ankle-brace compatibility in your own basketball shoes before training or competition.

Sized for your shoe, trim only if needed

One pair covers a size range and is trimmed at the toe to your own foot outline, so a snug performance last is not a problem.

Return, not absorb

Many cushioning products are designed mainly to absorb impact. Springbak®'s 1,4-polybutadiene layer is designed to compress and return toward its shape. Separately, Weber State force-plate testing found that more than twice the force was required to displace a person standing on Springsoles — a standing measurement, not a measure of basketball movement.

Sources: every description above is taken from the named manufacturer's own official website. Springbak, Inc. is not affiliated with, sponsored by, endorsed by or partnered with any of these companies, and none of them have reviewed or approved this comparison. Links open the manufacturer's own site so you can read their wording first-hand.

Comparison of product categories based on each manufacturer's own publicly published product descriptions, current as of August 2026. VKTRY, Spenco, Sorbothane, Superfeet and all other names are trademarks of their respective owners, are used here for identification and comparison only, and imply no affiliation with, sponsorship by or endorsement by Springbak, Inc. — in either direction. Product designs and specifications change — check the manufacturer's current listing before buying. Springbak® makes no performance claim on behalf of any other brand.

Gear comparison

What basketball players actually put under their feet

Basketball performance insoles and the other layers a hooper can change, side by side — what each one is made of, how tall it is, and the job it is genuinely good at.

Basketball gear compared by material, thickness and use-case, with links to the articles covering each option.
Layer or gear	Material	Thickness	Best use-case	Read more
Springbak® Springsoles (added layer)	1,4-polybutadiene elastomer, patented	3/32 in (≈2.4 mm), even heel to toe	A resilient layer designed to compress and return toward its shape, intended for jumps, cuts and landings; designed to minimize changes to fit — confirm in your own shoe	Why vertical is a ground problem
Factory sock liner	Die-cut EVA or PU foam	≈2–5 mm, heel-loaded	Comfort and fit — the layer your shoe was designed around (and the one Springsoles keep)	Feet are equipment
Carbon-plate replacement insole	Moulded carbon fiber with a foam top cover	Full insole stack	Plate flex and rebound; typically replaces your factory liner, varies by model	What the patents cover
Cushioned or gel replacement insole	EVA, PU or gel	Several mm, often heel-loaded	Typically designed for cushioning and comfort rather than marketed for energy return; varies by design	Fourth-quarter mechanics

Product categories described from manufacturers' own published descriptions. All trademarks belong to their owners; no affiliation is implied.

On the record

What the labs and the researchers found

Springbak® has been tested in university human-performance labs rather than marketed on feel alone. These are published statements from the people who ran or reviewed that work. Individual results vary.

“Our department sponsored a strength and stability study at the Weber State University human performance lab. After reviewing the force plate data, showing it took more than twice the force to push off the subjects off the force plate when standing on Springsoles, we have to conclude there is significant strength increase to individuals utilizing Springsoles.”

Howard Gray, PhDDirector of the Department of Gerontology, Brigham Young University

Weber State force plate testing

What the force-plate result means on the hardwood

Weber State University human-performance lab testing found that more than twice the force was required to displace a person standing on Springsoles compared with standing without them. This was a standing resistance-to-displacement measurement. It did not directly measure jump height, landing forces, cutting speed, change-of-direction speed, deceleration performance, push-off energy or basketball performance.

Intended applications on the hardwood: gather steps, jumps, landings, cuts, defensive slides and deceleration — product uses, not outcomes measured in the Weber State test.
The 1,4-polybutadiene layer is designed to compress under load and return toward its shape; energy return is the material's intended function.
The 1,4-polybutadiene layer is designed to return toward its shape between reps. Weber State measured standing resistance to displacement only — not jump height, repeated-jump performance, landing forces or fatigue.

See the full breakdown on Proof & testing.

Springbak® balance and force-plate proof →

Challenge Two

The Springbak® core challenge — trunk rotation test

Basketball, volleyball, golf, baseball, track and field and strength training all depend on more than straight-line speed. Core mobility and body control matter just as much, and rotation is the cheapest way to test them — no tape measure, no timing gate.

Test your core rotation

Stand comfortably with your feet shoulder-width apart.
Keep your feet planted and face straight ahead.
Extend your arms in front of you, or cross them over your chest.
Slowly rotate your upper body as far as is comfortable — without moving your feet.
Note your finishing position: a spot on the wall, a piece of furniture, a mark on the floor.
Insert your Springbak® Springsoles and repeat the exact same movement.
Compare your comfort, balance, control and range of rotation.

Do not force the movement. The purpose is to compare how your body feels and moves under the same conditions, so keep the shoes, surface, stance and technique identical on both attempts.

Score your result

Take the test, then rate the second attempt against the first to get your Springbak® Challenge score.

Turn. Control. Compare. Same athlete, same shoes, same challenge.

Fitting them to your basketball footwear

Try the Springsole without trimming first.
If the factory liner is removable, remove it and place the Springsole underneath it.
If the liner is lightly glued, gently pull to see whether it releases cleanly. If it does, place the Springsole underneath it.
If the liner begins to tear, stretch, deform, or resist removal, stop and leave it in place. Put the Springsole on top instead.
Never force out a firmly bonded or stitched liner.
Trim only if needed for a flat fit, starting at the toe/forefoot and removing a very small amount at a time.
Do not trim the heel and do not unnecessarily narrow the sides.
Recheck the fit after every small trim.
Use them in both game shoes and practice shoes so the layer under your foot is consistent between the two.

FAQ

Basketball insoles — frequently asked questions

Will basketball insoles make me jump higher?

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Weber State did not measure vertical-jump height or basketball jump performance. What its force-plate lab measured was standing stability: it took more than twice the force to displace a person standing on Springsoles. Springsoles are designed as a resilient layer beneath the foot that compresses and returns toward its shape; they do not add force, and we do not claim they make a player jump higher. Some athletes report that they feel springier — that is subjective feedback, not a measured jump-height result. For jump gains, pair any equipment with a structured program such as the vertical program in Train.

What are the best insoles for basketball?

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Players comparing basketball insoles can look at thickness, material, whether the product adds to or replaces the factory liner, how much it changes shoe volume, how it installs, and the actual fit and lockdown in their own shoe. Cushioning, durability and fit effects vary by product and shoe model. Springsoles are a 3/32-inch resilient added layer designed to compress and return toward its shape; energy return is an intended material function, not a measured basketball-performance result. When comparing products marketed as vertical jump insoles, remember that the Weber State test did not measure vertical-jump height.

Do they fit inside basketball shoes with built-in cushioning or a carbon plate?

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Often, but compatibility varies by model, so it is not guaranteed. Try the Springsole untrimmed first. If the liner is removable, try the Springsole underneath it. If the liner is lightly glued, remove it only if it releases cleanly; if it tears, stretches, deforms or resists removal, stop, leave it in place and put the Springsole on top. Nothing should be placed underneath an internal plate or cushioning unit. Confirm the Springsole lies flat, then check actual fit and lockdown in your own shoe.

What size should a basketball player order?

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Order your normal shoe size. Current ranges: US men’s 6/7, 8/9, 10/11; US women’s 7/8, 9/10, 11/12; EU 38/40, 41/42, 43/45; UK 5/6, 7/8, 9/10. Each pair covers a size range. Try it untrimmed first. Trim only if needed for a flat fit, in very small amounts from the toe or forefoot, and recheck after each trim. Do not trim the heel and do not unnecessarily narrow the sides.

Are Springsoles legal for high school, college and pro basketball?

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Rules can vary by school, league, federation and competition. Springbak does not treat past athlete use or product design as governing-body approval. Check the current equipment rules for your school, league or federation, and ask the appropriate official if you are unsure.

Will they change how my basketball shoes fit?

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The layer is an even 3/32 of an inch from heel to toe. The 3/32-inch layer is designed to minimize changes to shoe fit. Confirm actual fit, heel position, lockdown, lace tension, plate feel and ankle-brace compatibility in your own basketball shoes before training or competition.

Do they work with ankle braces and high-tops?

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It depends on your shoe and brace combination. Depending on the liner, the Springsole goes under a removable liner or on top of one that stays in place, and it can change foot position inside the shoe slightly. Check the actual setup — shoe, tape or brace, and lacing — for fit, heel position and lockdown before training or competition.

Do they help with heel pain and sore knees from hardwood?

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Springsoles are not a medical device and are not intended to diagnose, treat or prevent any condition. Heel, knee, shin or persistent pain should be discussed with a qualified clinician. If you wear a prescribed orthotic, get your clinician's approval before adding or repositioning another layer.

How long do they last for a full basketball season?

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The patented elastomer is chosen for resilience rather than foam-style compression, so it springs back between reps instead of packing out. Programs typically run a pair through a full school and club season of jump volume.

Can I use one pair in multiple pairs of basketball shoes?

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You can move them between shoes, but most players buy one pair for game shoes and one for practice so each pair stays set up in its own shoe.

How much do basketball insoles cost and where do I buy them?

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Every pair of Springbak® Springsoles is made in the USA and covered by four U.S. patents. Pick your size on the shop page and checkout completes on the springbak.net cart. Team and program pricing is available through the bulk-order form.

The gear

Buy Springbak® Springsoles for Basketball

Every pair of Springbak® Springsoles is 3/32 of an inch thick and made in the USA, at the live price shown on each card. Pick your size and quantity, and "Add to cart" hands you to the secure springbak.net checkout with that exact pair already in the cart.

Springbak US Men's Size

US men's sizing — trim only if needed

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SizeQuantity

We could not confirm size 6 / 7 just now.

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US men's questions

Which US men’s size should I order?

Order your normal US men’s shoe size. This listing covers US men’s 6/7, 8/9 and 10/11. If you fall between two ranges, take the larger one. Try it untrimmed first, then trim only the toe or forefoot in very small amounts if needed for a flat fit.

How do these compare to other sizing standards?

EU and UK shoe-size numbering uses different scales from US sizing, so use the conversion guidance below when choosing your Springsole range (US men’s 9 ≈ EU 42.5 ≈ UK 8). All four listings are the exact same patented 3/32-inch Springbak® Springsole at the same price — only the size scale printed on the package changes. The current price is shown live from our store.

Will Springsoles fit court shoes, cleats, trainers and work boots?

Yes. Try the Springsole without trimming first. If the factory liner is removable, remove it and place the Springsole underneath it. If the liner is lightly glued, gently pull to see whether it releases cleanly; if it does, place the Springsole underneath it. If the liner begins to tear, stretch, deform, or resist removal, stop and leave it in place. Put the Springsole on top instead. Never force out a firmly bonded or stitched liner. Try the Springsole without trimming first. Trim only if needed for a flat fit, starting at the toe/forefoot and removing a very small amount at a time. Do not trim the heel and do not unnecessarily narrow the sides. Recheck the fit after every small trim. At 3/32 of an inch, Springsoles fit court shoes, cleats, trainers and work boots with minimal added thickness.

How do I check out and what if the size is wrong?

Choosing a size here opens the secure Springbak® cart on springbak.net with this listing and your quantity already added. Payment, shipping and exchanges are handled there by the Springbak® team — email info@springbak.net or call 951-277-3000 and we will get you the right pair.

Springbak US Women's Size

US women's sizing — trim only if needed

Checking price…

Checking stock

SizeQuantity

We could not confirm size 7 / 8 just now.

View current price on springbak.net

US women's questions

Which US women’s size should I order?

Order your normal US women’s shoe size. This listing covers US women’s 7/8, 9/10 and 11/12. If you fall between two ranges, take the larger one. Try it untrimmed first, then trim only the toe or forefoot in very small amounts if needed for a flat fit.

How do these compare to other sizing standards?

US women’s runs about 1.5 sizes above US men’s (US women’s 9 ≈ US men’s 7.5 ≈ EU 40 ≈ UK 6.5). All four listings are the exact same patented 3/32-inch Springbak® Springsole at the same price — only the size scale printed on the package changes. The current price is shown live from our store.

Will Springsoles fit court shoes, cleats, trainers and boots?

Yes. Try the Springsole without trimming first. If the factory liner is removable, remove it and place the Springsole underneath it. If the liner is lightly glued, gently pull to see whether it releases cleanly; if it does, place the Springsole underneath it. If the liner begins to tear, stretch, deform, or resist removal, stop and leave it in place. Put the Springsole on top instead. Never force out a firmly bonded or stitched liner. Try the Springsole without trimming first. Trim only if needed for a flat fit, starting at the toe/forefoot and removing a very small amount at a time. Do not trim the heel and do not unnecessarily narrow the sides. Recheck the fit after every small trim. At 3/32 of an inch, Springsoles fit court shoes, cleats, trainers and boots with minimal added thickness.

How do I check out and what if the size is wrong?

Choosing a size here opens the secure Springbak® cart on springbak.net with this listing and your quantity already added. Payment, shipping and exchanges are handled there by the Springbak® team — email info@springbak.net or call 951-277-3000 and we will get you the right pair.

Springbak EU Size

European sizing — trim only if needed

Checking price…

Checking stock

SizeQuantity

We could not confirm size 38 / 40 just now.

View current price on springbak.net

EU questions

Which EU size should I order?

Order your normal EU shoe size. This listing covers EU 38/40, 41/42 and 43/45. If you fall between two ranges, take the larger one. Try it untrimmed first, then trim only the toe or forefoot in very small amounts if needed for a flat fit.

How do these compare to other sizing standards?

EU 42 is roughly US men’s 8.5 and UK 8; EU 39 is roughly US women’s 8.5. All four listings are the exact same patented 3/32-inch Springbak® Springsole at the same price — only the size scale printed on the package changes. The current price is shown live from our store.

Will Springsoles fit court shoes, cleats and trainers bought in EU sizing?

Yes. Try the Springsole without trimming first. If the factory liner is removable, remove it and place the Springsole underneath it. If the liner is lightly glued, gently pull to see whether it releases cleanly; if it does, place the Springsole underneath it. If the liner begins to tear, stretch, deform, or resist removal, stop and leave it in place. Put the Springsole on top instead. Never force out a firmly bonded or stitched liner. Try the Springsole without trimming first. Trim only if needed for a flat fit, starting at the toe/forefoot and removing a very small amount at a time. Do not trim the heel and do not unnecessarily narrow the sides. Recheck the fit after every small trim. At 3/32 of an inch, Springsoles fit court shoes, cleats and trainers bought in EU sizing with minimal added thickness.

How do I check out and what if the size is wrong?

Choosing a size here opens the secure Springbak® cart on springbak.net with this listing and your quantity already added. Payment, shipping and exchanges are handled there by the Springbak® team — email info@springbak.net or call 951-277-3000 and we will get you the right pair.

Springbak UK Size

UK sizing — trim only if needed

Checking price…

Checking stock

SizeQuantity

We could not confirm size 5 / 6 just now.

View current price on springbak.net

UK questions

Which UK size should I order?

Order your normal UK shoe size. This listing covers UK 5/6, 7/8 and 9/10. If you fall between two ranges, take the larger one. Try it untrimmed first, then trim only the toe or forefoot in very small amounts if needed for a flat fit.

How do these compare to other sizing standards?

UK sizing runs about 1 size below US men’s and 5 sizes below EU (UK 8 ≈ US men’s 9 ≈ EU 42.5). All four listings are the exact same patented 3/32-inch Springbak® Springsole at the same price — only the size scale printed on the package changes. The current price is shown live from our store.

Will Springsoles fit boots, trainers and court shoes?

Yes. Try the Springsole without trimming first. If the factory liner is removable, remove it and place the Springsole underneath it. If the liner is lightly glued, gently pull to see whether it releases cleanly; if it does, place the Springsole underneath it. If the liner begins to tear, stretch, deform, or resist removal, stop and leave it in place. Put the Springsole on top instead. Never force out a firmly bonded or stitched liner. Try the Springsole without trimming first. Trim only if needed for a flat fit, starting at the toe/forefoot and removing a very small amount at a time. Do not trim the heel and do not unnecessarily narrow the sides. Recheck the fit after every small trim. At 3/32 of an inch, Springsoles fit boots, trainers and court shoes with minimal added thickness.

How do I check out and what if the size is wrong?

Choosing a size here opens the secure Springbak® cart on springbak.net with this listing and your quantity already added. Payment, shipping and exchanges are handled there by the Springbak® team — email info@springbak.net or call 951-277-3000 and we will get you the right pair.

Coaches & team orders

Team pricing for basketball programs, AAU clubs and high schools

Kit out a full roster — every player hoops in a different shoe, and Springsole size ranges cover the roster. Try each pair untrimmed and trim only if needed. Volume pricing, invoice billing and fast turnaround for verified programs.

Email

info@springbak.net

Phone

951-277-3000

Request a team quote

Volume pricing and invoice billing are available for verified school, club and collegiate programs. Include your team name, estimated quantity and shipping address for a fast quote.

Shop now

Add Springsoles to your cart

Every size is one pair of Springbak® Springsoles for basketball — 3/32 of an inch thick, made in the USA, and they go under the insole already in your shoes. Pick a size below and it drops straight into your springbak.net cart.

Springbak US Men's Size

US men's sizing — trim only if needed

Checking price…

View current price on springbak.net

Springbak US Women's Size

US women's sizing — trim only if needed

Checking price…

View current price on springbak.net

Tracked shipping from Springbak® — U.S. shipping $7.95. International shipping calculated at checkout.

All sizes, quantities & EU / UK sizing Shop on springbak.net

Not just for competition

Balance and stability off the court

The same patented material shows up in stability testing, not just performance testing. On a force plate at Weber State University more than twice the force was required to displace a person standing on Springsoles compared with standing without them. If you or a parent are on your feet all day, read Springsoles for seniors: balance and stability all day on your feet. And if you play the fastest-growing court sport in the country, see pickleball insoles for court shoes and hard-court play.

Want the grounded-stance answers — how the force-plate result translates into balance, base of support and functional strength? Read the Springbak® balance and force-plate proof.

Train for basketball

Basketball reading from the Performance Desk

Basketball player in mid-air reaching for the ball

Basketball · Vertical

Your Vertical Is a Ground Problem

You cannot jump higher than the ground lets you push. A field guide to force, contact time, and the inches hiding in your takeoff.

6 min read

ShareX f in

Basketball · Mindset

The Shot You Take When Tired

Confidence is not a mood. It is a rehearsed decision you can still make with a fourth-quarter heart rate.

4 min read

ShareX f in

Related sports

Athletes in these sports face overlapping demands — same plant, same landings, same need for energy return.

From this sport

Everything tied to basketball — the insoles themselves, the sport-specific pages that share the same plant-and-land demands, and the full catalog.

Basketball insoles built for jumping, cutting and closing out

What basketball demands of your feet

Why Springsoles fit this sport

A resilient layer designed for energy return

Only 3/32 of an inch

Built for a full game of jumps and cuts

Works with the shoe you already play in

Where it shows up on the floor

What actually makes the best insoles for basketball

Find your Basketball Springsole size in three taps

Will it fit my basketball shoe?

Nike LeBron XXII

All ten basketball shoes, side by side

Questions the fit checker answers

What does the "fits as-is" verdict mean for my basketball shoes?

How much do I trim, and where?

Does the Springsole go above or below my insole?

What size Springsole do I order for my basketball shoes?

Will adding a layer change how my basketball shoes fit?

My model is not in the list — can I still use them?

Full-length replacement insoles vs. a Springbak® midsole layer

We add, we don't replace

Sized for your shoe, trim only if needed

Return, not absorb

What basketball players actually put under their feet

What the labs and the researchers found

What the force-plate result means on the hardwood

Force-Plate Stability Study

The Springbak® core challenge — trunk rotation test

Test your core rotation

Score your result

Fitting them to your basketball footwear

Basketball insoles — frequently asked questions

Will basketball insoles make me jump higher?

What are the best insoles for basketball?

Do they fit inside basketball shoes with built-in cushioning or a carbon plate?

What size should a basketball player order?

Are Springsoles legal for high school, college and pro basketball?

Will they change how my basketball shoes fit?

Do they work with ankle braces and high-tops?

Do they help with heel pain and sore knees from hardwood?

How long do they last for a full basketball season?

Can I use one pair in multiple pairs of basketball shoes?

How much do basketball insoles cost and where do I buy them?

Buy Springbak® Springsoles for Basketball

Springbak US Men's Size

US men's questions

Springbak US Women's Size

US women's questions

Springbak EU Size

EU questions

Springbak UK Size

UK questions

Team pricing for basketball programs, AAU clubs and high schools

Tell us the quantity, get your next step

Add Springsoles to your cart

Springbak US Men's Size

Springbak US Women's Size

Balance and stability off the court

Train for basketball

Vertical Jump Block

In-Season Strength

First-Step Quickness

Basketball Fourth-Quarter Conditioning

Basketball reading from the Performance Desk

Your Vertical Is a Ground Problem

The Shot You Take When Tired

Related sports

volleyball insoles

sprinting insoles

insoles for the weight room

From this sport

Springbak® Springsoles insoles

Volleyball insoles

Track & Field insoles

Strength & Training insoles

Sport-specific insoles

Recommended next steps

Start the Vertical Jump Block block

See the patented technology