Features of the KEEN Men's Cincinnati 8 Inch Waterproof Boot Left and right asymmetrical, non-metallic carbon-fiber toes offer unobtrusive Fit and Are 15% lighter than steel Keen. Dry waterproof, breathable membrane Oil and slip-resistant non-marking rubber Outsole Electrical hazard (EH) or Electric Shock Resistant (ESR) footwear provides a secondary source of protection incase accidentally coming into contact with live electrical circuits Full-grain barnyard resistant waterproof leather helps resist the damaging effects of oleic acid, urea, sodium chloride, and ammonium hydroxide Keen Luftcell: Air-infused, PU Midsole for weightless comfort Removable, Dual-Density PolyAer PU Footbed with aerated pillow-top cushioning Cleansport NXT Technology for natural odor protection Environmentally preferred premium leather from LWG-Certified Tannery PFC-Free, durable water repellent Full Goodyear Welt Locking metal lace hooks