Product catalog
One patented insole, four sizing standards. Every pair is 3/32 of an inch thin, made in the USA, protected by four U.S. patents, and turns the shoes you already own into performance footwear. Sizes below show live availability from our store.
US men's sizing — trim to fit
$29.95
Best for: Men's running shoes, basketball shoes, football cleats and work boots
US women's sizing — trim to fit
$29.95
Best for: Women's volleyball shoes, track spikes, pickleball shoes and trainers
European sizing — trim to fit
$29.95
Best for: Soccer boots and European-sized football, running and court shoes
UK sizing — trim to fit
$29.95
Best for: UK-sized football boots, rugby boots, trainers and golf shoes
In force-plate testing, subjects standing on Springbak® Springsoles showed more than twice the overall resistance to being pushed from their position.
In plain English: they were harder to move. They could hold their ground better against a sideways push—exactly the kind of stability athletes need when planting, cutting, jumping, landing, and absorbing contact.
Springbak® gives the foot a more stable, responsive platform to work from inside the shoe.
Results are from the force-plate testing described in U.S. Patent No. 6,589,630 B1. Individual results vary.
Springbak® Springsoles use a patented 1,4-polybutadiene layer that returns energy instead of absorbing it. The technology is covered by U.S. Patents 5,554,694, 5,695,850, 6,120,880 and 6,589,630 B1. Read the patents and lab evidence, the force-plate proof, or our business details.
The receipts
4
U.S. patents
Nos. 5,554,694, 5,695,850, 6,120,880, 6,589,630 B1 — performance-enhancing athletic shoe components and methods.
Read the patent family2×+
Force to displace
Force plate testing at the Weber State University Human Performance Laboratory: more than twice the force was needed to push subjects off balance on Springsoles.
See the force plate dataBalance
& stability study
Evaluated with Dr. Michael Yessis, Dr. Robert Wiswell and Howard Gray, PhD — stability and functional strength, measured rather than claimed.
Read the study