New! Box may be bent with stickers Smoke and pet free home Superfeet All-Purpose Cushion Insoles Trim-To-Fit Medium Arch Support Insert Size F M 11.5-13 W 12.5+ Upgrade your shoes with Superfeet FLEX insoles. An excellent introduction to the doctor-recommended Superfeet shape, the special flex design hugs your feet and cradles your heels to help your footwear, and you, feel great. Durable Aerospring Comfort Foam soles deliver 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