Saucony Women's ProGrid Stabil CS 2 100% Synthetic and mesh Rubber sole SRC Impact Zone: Provides shock attenuation and sets up the foot for a smooth transition LIGHTWEIGHT, BREATHABLE MESH Arch Lock: A construction method in which the midfoot area of the upper wraps over the foot connecting with the midsole to provide superior control and support. DUAL DENSITY SSL EVA Sizes: M = Medium, W = Wide. Weight: 11.6 oz