The Pro-Tec Ankle Wrap provides compression to support the ankle ligaments, warmth to promote circulation, and stabilization to prevent further injury. Fits comfortably in most shoes. Sizes (Based on shoe size): Sm.-Men (5-7), Women (6-7.5) Med.-Men (7.5-10.5), Women (8-11) Lrg.-Men (11-14), Women (11.5-13) Note: Larger ankles, order one size up