Onyx Sportsman's Exclusive A/M-24 Automatic/Manual Inflatable Life Jacket - The A/M-24 Auto/Manual inflatable life jacket is lightweight and low profile, and the perfect option for kayaking, fishing, paddling, or boating. Lightweight and comfortable, you won't know you have it on until you need it. This Automatic/Manual life jacket inflates automatically upon immersion in water but can be converted to manual inflation. Features: Water activated or pull cord inflation. Convertible from automatic/manual to manual only inflation. Low profile design keeps you cool in warm weather. Adjustable body belt; front buckle closure. Protective cover uses durable nylon fabric. Manual conversion cap included. Universal Size: Fits 30 in – 52 in Chest