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

For reduced muscle fatigue

and relaxed movement

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

Available while supplies last

Barefoot Science® 4 Step System Retail The 4 Step System comesFor reduced muscle fatigue, improved static and dynamic balance, and relief from sore feet. 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, improved static and dynamic balance, and relief from sore feet. For all activities: walking, running, and standing. Comfortable, safe, and easy to use. Helps alleviate foot, leg, hip, and back problems. Available