Featuring an 8mm neoprene bootie with fleece lining wrapped in layers of soft rubber so your feet will stay warm and dry in the most extreme conditions. This footwear is 100% Waterproof and includes an 8mm Neoprene Bootie for comfort and performance. The Cool Weather Lining provides soft, insulating, lightweight, and performance materials for warmth and comfort. These wellingtons feature extended rubber coverage and a lightweight midsole for all-day comfort and support. The bioDEWIX Anti-Microbial Footbed Insert Topcover with NZYM helps control odor and manage moisture. For superior traction, they are equipped with Vibram Arctic Grip A.T for wet ice traction coupled with XS Trek Evo for added durability, offering improved grip on both wet and dry surfaces. The upper is made of rubber/neoprene, the lining is rubber/neoprene, and the sole is rubber/EVA. Care instructions: Clean with cold water and use rubber boot care. Heel Height: 4.0 cm.