You'll hardly realize you have this life jacket on...until you need it!West Marine's Ultra-Slim Manual Inflatable Life Jacket Belt Pack offers a low-profile, slim design that provides maximum comfort and maneuverability while paddling, fishing or other recreational boating. Features easy manual, pull-cord inflation with oral inflation backup. It provides 19lb. of buoyancy with its initial 16g CO2 charge, yet the wearer can provide additional buoyancy of up to a total of 26.5lb. by using the oral inflation tube. Easily repacked and maintained. This life vest must be manually placed around the head after inflation and is therefore recommended for competent swimmers only.Buoyancy: 19lb.Activation Method: ManualInflator Type: Halkey Roberts 840 ManualUSCG Type: Type V with Type III performanceShroud/Pouch Material: NylonClosure: BuckleSize: Universal size for persons 16 years of age and older who weigh more than 80lb.Service Interval: One year