American built using the finest materials from around the world Left and right asymmetrical, non-metallic carbon-fiber toes offer unobtrusive fit and are15% lighter than steel KEEN.DRY waterproof, breathable membrane Waterproof leather upper. KONNECTFIT heel-capture system for a locked-infit 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. TPU shank for midfoot tsupport. Removable metatomical PUfootbed 90°heel(5/8"Height) provides stability and helps "catchorlock" the foot in place. KEENLUFT celldual-density PU midsole, infused with air for weightless comfort. Oil-and slip-resistant non-marking rubber outsole CleansportNXT Technology for natural odor protection Midsole meets ASTMD471-06903 oil and isooctane chemical resistance standards. MeetsASTMF2913-17 Satra non-slip testing standards. Meets ASTMF1677-96 Mark II non-slip testing standard. Meets ASTMF2412-17 and F2413-17MI/75C/75 EH standards.
