The North Face - M Bolt (Brownie/Jewel Blue) - Men's: 1.4-1.6 mm pig-suede leather upper. Natural rubber toe cap. Lace to toe. AgION anti-microbial lining and X-2 footbed. 2/3-length steel shank insert. Cushioned bi-layer dual-density cut and buff EVA midsole. Vibram rubber outsole. Weighs 1 lb, 4 oz. (660 g.).