*Full-grain waterproof and barnyard-resistant leather upper *Lace-up closure with locking metal lace hooks *Moisture-wicking textile lining *KEEN. DRY waterproof breathable membrane *Removable dual-density Poly Aer PU footbed with aerated pillow-top cushioning *KEEN Luftcell air-infused PU midsole for weightless comfort *Midsole meets ASTM D471-06 903# oil and isooctane chemical resistance standards *Shellback heel support *Continuous Goodyear welt construction for enhanced durability under extreme working conditions *Oil- and slip-resistant non-marking rubber outsole *Left and right asymmetrical non-metallic carbon-fiber toes offer unobtrusive fit and are 15% lighter than steel *Meets ASTM F2913-19 SATRA non-slip testing standards *Meets ASTM F1677-96 MARK II non-slip testing standards *Meets ASTM F2412-18 and F2413-18 M I/75 C/75 EH standards *Electrical hazard (EH) or Electric Shock Resistant (ESR) footwear provides a secondary source of protection in case of accidental outsole contact with live electrical circuits