Keen® Men's Independence 6" Insulated Carbon Fiber Toe Work Boot 400g-insulated style is American Built in the Pacific Northwest using carefully sourced materials from around the world. Premium features like a KEEN.DRY waterproof, breathable membrane, carbon-fiber safety toes, air-injected LuftCell midsole, and innovative KEEN.ToughSole outsole keep you protected and productive for the long haul. Full-grain waterproof Leather upper Mesh and moisture-wicking textile lining KEEN.DRY waterproof, breathable membrane 400G KEEN.WARM insulation for extra warmth in colder environments Locking metal lace hooks Left and right asymmetrical, non-metallic carbon-fiber toes offer unobtrusive fit and are 15% lighter than steel Electrical hazard (EH) or Electric Shock Resistant (ESR) footwear provides a secondary source of protection incase accidentally coming into contact with live electrical circuits Contoured heel guard protects against bumps and scrapes, plus normal wear and tear 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 KEEN Luftcell: Air-infused, PU midsole for weightless comfort Removable metatomical PU footbed Oil- and slip-resistant KEEN.ToughSole outsole that is lighter weight and more durable than Rubber American built using the finest materials from around the world Product Features: Waterproof:Yes Outsole:KEEN.ToughSole Rubber Oil- and Slip-resistant Upper:Waterproof Full Grain Leather Electrical Hazard:Meets standards Height:6" Insulation:400g KEEN.WARM Lining:Moisture-wicking Textile Toe Protection:Non-metallic Composite Midsole:KEEN Luftcell: Air-infused, PU Insert:KEEN.DRY waterproof, breathable membrane Support (shank):Molded Nylon Arch Footbed:Polyurethane, removable, metatomical Slip Resistant:Yes Weight:26.1 oz (739.9 g) Keen Men's Independence 6" Insulated Carbon Fiber Toe Work Boot