This Onyx M-16 Belt Pack Manual Inflatable Life Jacket (PFD) has a unique design that keeps standup paddleboarders safe without compromising agility! 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. This PFD is approved for persons 16 years of age and older; and over 80 lbs. This is a U.S. Coast Guard Approved Type V Life Jacket (PFD) with Type III Performance. The adult universal size fits a 30”-52” chest and up to a 52” waist. This item does include a CO2 cylinder. FREE SHIPPING in Continental US!