Durable, waterproof premium full-grain leather Seam-sealed waterproof construction 400-gram PrimaLoft® insulation to keep you warm in cold conditions Padded leather collar for added comfort at the ankle Removable anti-fatigue footbed to absorb shock and return energy Leather insole, durable inner lining, structured toe and heel areas for support Rubber lug outsole for good traction on a variety of surfacesComposition: 100% Leather