A waterproof, supportive rubber boot with excellent traction Helly Hansen has produced weather protective gear since 1877, and rubber boots have always been at the core of our business; these Midsund waterproof rubber boots for men effortlessly combine style, comfort and weather protection. Features include HH Comfort Insole, HH Max-Grip Protective Rubber Midsole, and a Vulcanised rubber outsole for grip and temperature resistance. Upper: 100% Rubber - Lining: 95% Cotton 5% Polyester