Barefoot Science® 7 Step System Standard Its interchangeable inserts provide six

Its interchangeable inserts provide six or seven arch-stimulus levels

Biopods Catalyst provides dynamic

these insoles naturally train the feet and lower limbs for optimal function

Trim-able to 3/4 length

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

Barefoot Science® 7 Step System Standard Its interchangeable inserts provide sixEngage and strengthen your feet with every step to reduce fatigue, improve balance and find relief. The 7 Step System comes with 7 interchangeable inserts allow you to customize how Barefoot Science works best for you. For all activities: walking, running, and standing. Comfortable, safe, and easy to use. Available while supplies last. Colors may vary from images shown. Clinically tested. Healthcare professional recommended. Unconditionally guaranteed.