Upgrade your shoes with Superfeet^® FLEXmax™ insoles. An excellent introduction to doctor-recommended Superfeet shape, the special flex design hugs your feet and cradles your heels to help your footwear, and you, feel great. Durable 5mm thick Aerospring™ comfort foam delivers heel-to-toe comfort, while the flexible heel cradle provides structure and stability, reducing stress on feet, ankles and knees. FLEXmax insoles fit best in roomy athletic footwear.

Sizing:

B: Women's 4.5-6

C: Women's 6.5-8/Men's 5.5-7

D: Women's 8.5-10/Men's 7.5-9

E: Women's 10.5-12/Men's 9.5-11

F: Women's 12.5-14/Men's 11.5-13