Saucony Women's ProGrid Ride 4 100% Synthetic Rubber sole Forefoot Lockdown, Hydrator collar lining,comfortride sockliner, HRC Strobel Board Last: Standard Saucony Last for the classic Saucony fit; wide in the forefoot, narrow in the heel. Strobel technique. Cushioning material: Heel ProGrid. Weight: 9.7 oz. Heel ProGrid, SSL EVA, SRC Xtra Forefoot Cushioning, SRC Impact Zone Blown rubber, XT-900