Wolverine Men's W05551 Big Sky 8-Inch Hunting Boot Leather Imported Rubber sole Durable kodiak waterproof nubuck leather and cordura upper Gore-Tex waterproof membrane to keep your feet dry in the wettest of conditions 1000 grams of thinsulate ultra insulation to keep your feet warm in cold climates Goodyear welt construction combined with a vibram rubber lug outsole for extreme durability that will last in all terrains