AMERICAN BUILT: Assembled with pride in Kentucky, with a minimal-waste design using the finest materials from around the world; We’re proud to bring footwear manufacturing back to the USA, and to do it all in one of America’s most modern factories KEEN.PROTECT soft toe caps help safeguard against minor impact, but are not reinforced with a secondary crush resistance material; The Targhee 4 work boots for men meet or exceed ASTM F2892 EH standards WATERPROOF: KEEN.DRY is a waterproof, breathable membrane liner, keeping your feet dry and comfortable; Full-grain barnyard resistant waterproof leather helps resist the damaging effects of oleic acid, urea, sodium chloride, and ammonium hydroxide 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; Heat-resistant rubber outsole rated up to 572°F/300°C CONSTRUCTION: Outsole and midsole meets ASTM D471-06 903# oil and isooctane chemical resistance standards; KEEN.FUSION construction fuses the upper to the sole for a longer-lasting bond without glues or solvents