Left and right asymmetrical KEEN.PROTECT soft toes KEEN.DRY waterproof, breathable membrane Oil- and slip-resistant non-marking rubber outsole Heat resistant, rubber outsole rated up to 572° F / 300° C 90° heel (5/8" Height) 100% non-metallic construction Nylon shank for midfoot support Waterproof leather upper Non-mutilating upper KEEN.ReGEN: A lightweight, compression-resisting midsole Contoured heel lock Locking non-metallic lace hooks Removable metatomical PU footbed Cleansport NXT Technology Meets ASTM F2892-18 EH standards Meets ASTM F2913-17 SATRA non-slip testing standards Meets ASTM F1677-96 Mark II non-slip testing standards Environmentally preferred premium leather from LWG-Certified Tannery PFC-Free, durable water repellentVendor Style Number: KEEN Utility Men's Chicago 6" Waterproof Work Boot