Wide Width: Fits Women's D to E and Men's EE to 4E

Colors may vary from images shown

Use only with shoes that HAVE removable insoles

and relaxed movement

The 5 Step System comes with 5 interchangeable inserts that allow you to customize how Barefoot Science® works best for you – for reduced muscle fatigue

Biopods® Catalyst Dynamic Sensory Insoles Size:XS - US Youth: 4 - 5.5 Wide Width: Fits Women's DBiopods Catalyst is the core model in the new Biopods insole family. It provides dynamic full foot sensory engagement through the arch, heel, and forefoot, giving the body better information underfoot with every step. Now available for pre order. Expected to ship late August.