Unique design keeps stand-up paddle boarders (SUP), anglers, boaters, and other paddlers safe without compromising movement! The 16 gram CO2 charge provides 17 lbs. of buoyancy – the oral inflation tube can be used to provide additional buoyancy up to 26.5 lbs. when fully inflated. Secure pull tab clips on to the life jacket, allowing for quick release inflation when pulled. Approved for persons 16 years of age and older and over 80 lbs. This adult size universal life jacket fits a 30 inch to 52 inch chest and up to a 52 inch waist. Comes with a CO2 cylinder.