The Prolimit Vapor Steamer Free-X 6/4 is an advanced wetsuit designed to provide maximum warmth and comfort in cold waters. It is made from NaturePrene2®, an environmentally friendly material that is 100% neoprene-free. The suit has 6 mm thickness around the body for optimal thermal insulation and 4 mm thickness on the arms and legs for increased mobility. The innovative Thermal Rebound™ technology helps keep you warm even in extreme conditions. With an asymmetrical front zipper and durable, waterproof seams, this wetsuit is perfect for wing, kite and windsurfing. A suit with high performance and comfort.