Superfeet All-Purpose Cushion Size:F (11.5-13) More than a classic

More than a classic

External Gear Attachment loops

Fully removable

Face: 94% polyester/6% spandex with C6 DWR

medium weight fabric with good warmth

Superfeet All-Purpose Cushion Size:F (11.5-13) More than a classicUpgrade your shoes with Superfeet FLEX 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 4mm 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. FLEX insoles fit best in athletic footwear.