FEATURES Left and right asymmetrical KEEN.PROTECT soft toes help safeguard against minor impact, but not reinforced with a secondary crush resistance KEEN.DRY waterproof, breathable membrane Shellback heel support Nylon shank for midfoot support Electrical hazard (EH) or Electric Shock Resistant (ESR) footwear provides a secondary source of protection in case accidentally coming into contact with live electrical circuits Environmentally preferred premium leather from LWG-Certified Tannery PFC-Free, durable water repellent MATERIALS Full-grain barnyard resistant waterproof leather helps resist the damaging effects of oleic acid, urea, sodium chloride, and ammonium hydroxide Mesh liner provides breathability to help keep feet cool in warm environments Removable, dual-density PolyAer PU footbed with aerated pillow-top cushioning KEEN Luftcell: Air-infused, PU midsole for weightless comfort Oil- and slip-resistant outsole that is lighter weight and more durable than rubber