Wide Classic Sneakers - Sapphire Size:Women's: US 10 The 4 Step System comes

The 4 Step System comes with 4 interchangeable inserts that allow you to customize how Barefoot Science® works best for you – for reduced muscle fatigue

Biopods Resonance begins with the Catalyst Model's dynamic

Interchangeable inserts allow the user to personalize the arch stimulus strength and choose the sensory experience that feels best

It provides dynamic full-foot sensory engagement through the arch

Narrow Width: Fit Women's A to AAA and Men's B to C

Wide Classic Sneakers - Sapphire Size:Women's: US 10 The 4 Step System comesEncourages healthy movement for daily life, sport, and recovery. Wide Width: Fit Women's D to E and Men's EE to 4E