Keen® Men's Independence 8" Carbon Fiber Toe 600g insulated boot is American Built using carefully-sourced materials from around the world. The taller collar height provides additional ankle support and stability, while premium features like a KEEN.DRY waterproof, breathable membrane, carbon-fiber safety toes, air-injected LuftCell midsole, and innovative outsole keep you protected and productive for the long haul. American built using the finest materials from around the world Left and right asymmetrical, non-metallic carbon-fiber toes offer unobtrusive fit and are 15% lighter than steel Full-grain waterproof Leather upper Mesh and moisture-wicking textile lining KEEN.DRY waterproof, breathable membrane Electrical hazard (EH) or Electric Shock Resistant (ESR) footwear provides a secondary source of protection incase accidentally coming into contact with live electrical circuits 600 grams of KEEN.WARM Insulation for extra warmth in colder environments 90° heel (5/8" Height) provides stability and helps "catch or lock" the foot in place Nylon shank for midfoot support Direct attach PU construction creates a strong bond between the upper and outsole without the use of glue or cement Contoured heel guard protects against bumps and scrapes, plus normal wear and tear Locking metal lace hooks KEEN Luftcell: Air-infused, PU midsole for weightless comfort Removable metatomical PU footbed Oil- and slip-resistant outsole that is lighter weight and more durable than rubber Product Features: Waterproof:Yes Outsole:Oil- and slip-resistant, non-marking Rubber with aggressive lug pattern Upper:Waterproof Full Grain Leather Electrical Hazard:Meets ASTM F2412-18 and F2413-18 M I/75 C/75 EH standards Height:8" Insulation:600g KEEN.WARM Lining:Moisture-wicking Textile Toe Protection:Carbon Fiber Midsole:KEEN Luftcell: air-infused, Polyurethane Insert:KEEN.DRY waterproof, breathable membrane Support (shank):Molded Nylon Arch Footbed:Polyurethane, removable, metatomical Slip Resistant:Meets ASTM F2913-19 SATRA Non-Slip Testing Standards Weight:28.9 oz (819.3 g) Keen Men's Independence 8" Carbon Fiber Toe 600g Insulated Waterproof Work Boot