SOFT TOE: Left and right asymmetrical KEEN.PROTECT soft toe caps help safeguard against minor impact, but are not reinforced with a secondary crush resistance material; These work boots meet or exceed ASTM F2892 EH standards MATERIALS: Non-mutilating upper reduces the chance of marking or scratching surfaces; The mesh liner in these men’s slip-on work boots provides breathability to help keep feet cool in warm environments TRACTION: Oil- and slip-resistant, non-marking, rubber outsoles that meet or exceed ASTM F1677 MARK II non-slip, and ASTM SATRA TM31 material abrasion testing standards; Featuring a 90° heel (5/8") provides helps "catch or lock" the foot in place CONSTRUCTION: Cement construction provides flexible, lightweight performance while a faux-welt delivers classic work boot style; Nylon shank for midfoot support; Heat-resistant rubber outsole rated up to 572°F/300°C SUPPORT & COMFORT: Featuring KEEN Luftcell, an air-infused midsole for weightless comfort and aerated pillow-top cushioning to keep your feet comfortable while walking on the job site