ABZORB® cushioning in the midfoot provides exceptional shock absorption Seamless Phantom Liner reduces the weight of the shoe plus enhances the comfort and fit 10mm drop: due to variances created during the development and manufacturing processes, all references to 10mm drop are approximate EVA (Ethyl Vinyl Acetate) foam footbed for cushioning IMEVA (injection-molded EVA foam) midsole for firm yet flexible cushioning Non-marking outsole 52 Durometer Insert/midsole Internal shank Gusseted tongue sewn in place to keep debris out for midfoot protection Slip resistant outsole properties are tested under ASTM F 2913-11, which meets or exceeds a result of 0.7 for dry and wet conditions, and 0.5 for oily, wet, and soapy conditions Static Dissipative footwear displaces charges of electricity through a walking surface, thus reducing the static electricity hazards (meets ASTM F 2412-11 and ASTM F 2412-11 requirements) Steel Toe footwear is engineered with a wide-flanged, tempered steel-toe cap that provides protection in hazardous work environments (meets ASTM F 2412-11, ASTM F 2413-11, I/75 and C/75 impact and compression safety standards) Leather upper (style MID627B, MID627G) Suede upper (style MID627O) Shoe Last: MX-001 Weight: 488 grams (17.2 oz)