U.S. Coast Guard approved Type III life jacket. In-Sight - a cylinder seal indication window that shows GREEN if the product is properly armed and ready to use; shows RED if not ready to use. Protective cover uses 400 denier and 200 denier nylon. Soft, extended neoprene neckline for all day comfort. Reflective piping for greater visibility. Use Onyx Rearming Kit #1354.