Saucony Men's Progrid Hurricane 13 Running Shoe 100% Synthetic and mesh Rubber sole Hydrator collar lining, full length ProGrid, Impact Interface. Last: Standard Saucony Last for the classic Saucony fit; wide in the forefoot, narrow in the heel. Strobel technique. Cushioning material: Full length ProGrid with Respon-tek. Weight: 12.9 oz. Technology: ProGrid Cushioning System, Dual Density SSL EVA, and SRC Impact Interfaces with HRC Strobel Board Additional Features: Comfortride sockliner, Arch Lock Midfoot Wrap. Upper: Air Mesh Upper and lightweight support overlays. Widths M = Medium, W = Wide