The Rocky Men's 8 in. Black Alpha Force Waterproof Lace-Up Boot is made with guaranteed Rocky waterproof construction. Oil- and slip-resistant, non-marking RigiTrac molded EVA/rubber outsole Full-grain water-resistant leather 8 in. high YKK Side zipper for easy on and off Lightweight 1000-denier nylon Non-metallic stabilizer Rocky Air-Port cushion footbed 1 Year Limited Warranty Rocky Black Alpha Force Waterproof Lace-Up w/Side Zipper, Boot, 8 in.