ALLOY TOE: Left and right asymmetrical aluminum alloy safety toes weigh 35% less than steel toes; The Redding Mid Alloy Toe work boot meets or exceeds ASTM F2412 and F2413, M I/75, and C/75 EH Standards TRACTION: Oil- and slip- resistant, non-marking, rubber outsoles; Lug sole patterns provide grip even on slick surfaces; Meets ASTM F1677 Mark II and ASTM F2913 SATRA non-slip standards UNDERFOOT PROTECTION: Electrical hazard (EH) rated footwear provides a secondary source of protection in case of accidentally encountering live electrical circuits; Heat resistant, rubber outsole rated up to 572° F / 300° C CONSTRUCTION: Non-mutilating uppers reduce the chance of marking or scratching surfaces; Water resistant leather protects against liquid absorption SUPPORT & COMFORT: A 90° heel (5/8") provides stability and helps "catch or lock" the foot in place; Elastic side panels allow for easy on and off while a TPU shank gives midfoot support