America’s hardest working boot is also America’s most comfortable work boot. Features Carbo-Tec construction, a process that creates soles using a rare blend of 95% neoprene combined with Comfort Core technology and other materials. The result is a comfortable, non-marking sole that is oil-, slip-, heat-, and chemical-resistant. Also includes full-grain leather, no lining, steel shank, and durable/resolable welt construction.