The insole for medium arches makes your JALAS shoes more comfortable and safer. Poron® XRD® material in the forefoot and heel absorbs up to 90% of impact energy, providing outstanding shock absorption. This reduces injury risk and increases comfort. The insole is anatomically designed, ESD approved, and fits all JALAS safety shoes. Available in 17 sizes. Remove the original insoles before use. The JALAS FootStopService (FSS) scanner helps you choose the best insoles for your feet.