Springbak® Springsoles Performance Insoles — EU Sizes 38–45 | Patented, Made in USA

Description

Springbak® Springsoles — patented energy-return performance insoles in European sizing (38/40, 41/42, 43/45). Made in the USA. $29.95 a pair.

Made for football boots, running spikes and court shoes sized on the EU scale: Springsoles are just 3/32 of an inch thin and slide underneath the insole already in your shoe — no trimming, no break-in, no change in fit. The patented 1,4-polybutadiene spring plate returns the energy your foot puts into every stride instead of soaking it up, so the shoes you already own work like performance footwear.

Protected by four U.S. patents: 5,554,694 · 5,695,850 · 6,120,880 · 6,589,630 B1.

Force-Plate Stability Study: 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 — better able to hold their ground against a sideways push, exactly the stability athletes need when planting, cutting, sprinting, jumping and landing. Results are from the force-plate testing described in U.S. Patent No. 6,589,630 B1. Individual results vary.

Used by professional and collegiate athletes in a range of sports. Full patents, lab evidence and sizing help: springbak.app/catalog/springbak-eu-size

More from Springbak®: the four U.S. patents · force-plate and lab evidence · athlete and coach endorsements · football insoles · soccer insoles