U.S. COAST GUARD APPROVED: This USCG-approved inflatable belt pack inflates manually by pulling the inflation handle. Approved for users 16 years or older, and over 80 lbs. The universal size fits up to a 52” waist MANUAL INFLATION: The 16 gram CO2 charge provides 17 pounds of buoyancy. This belt pack is equipped with back-up oral inflation to allow the wearer to provide additional buoyancy up to 26.5 pounds SAFETY & SECURITY: The inflation handle clips to the life jacket to prevent snag hazards. The adjustable body belt and front buckle closure allows for a secure fit of the vest. Features an attached D-ring for affixing accessories. LIGHTWEIGHT, LOW PROFILE: This ultra-sleek inflatable belt pack weighs less than 1 pound, making it ideal for stand-up paddleboarding, kayaking, fishing, sailing, and recreational boating. It fits comfortably around your waist for unhindered paddling or casting. When not in use it stows conveniently and compactly REARMING KIT: Inflatable life jackets can be reused after each inflation. Always read your Owner's Manual for the proper way to initially arm your life jacket, and how to re-arm it after it has been inflated. Use Onyx Rearming Kit #1370 for this product. It is recommended to purchase an extra rearming kit to try out your inflatable life jacket and become familiar with its operation.