OnyxA(R) strives to bring reliable, dependable, and trustworthy gear to your family&';s adventures. Keeping you on the water longer, while being comfortable and having fun making many memories out in the wild outdoors. Automatically inflates upon immersion in water or when the wearer pulls the "Jerk to Inflate" handle Equipped with back-up oral inflation Convertible from AUTO/MANUAL inflation to MANUAL ONLY inflation Provides comfort, safety and peace of mind without knowing you have it on, until you may need it Comfortable, lightweight, low profile design Soft neoprene neckline for all day comfort Durable fabric resists tears and punctures For persons 16 years of age and older; and over 80 lbs. Not recommended for non-swimmers or weak swimmers Minimum buoyancy of 22.5 lbs. when inflated For replacement CO2 cartridge, use Onyx A/M-24 Rearming Kit #1352 (K320) U.S. Coast Guard Approved Type V Life Jacket / Personal Flotation Device (PFD) with Type III Performance Item contains a CO2 cylinder and may not be available to ship to Alaska or Hawaii