Neoprene boots protect your feet from cold waters. They are made of neoprene 6mm thick, to keep your body warm in cold waters. Blindstiched seams inside and outside the boots, waterproof zipper and a special neoprene cover behind the zipper to prevent water leaks. “Pro Race” boots completely embrace your feet with neoprene flexibility and the rubber reinforced toes and heels, which offer stable feet-holding, additional water resistance and protection from land or boat obstacles. “Pro Race” boots have thick rubber soles for better traction on all surfaces. The white rubber on the bottom of soles does not leave marks on your boat.