Slim fitting PFD. Perfect for SUP Paddleboards, kayaks, canoing, fighing, and boating. Neoprene backed for comfort on your skin while paddling. Fits so well you won't feel it after a few minutes of paddling or fishing. Adult Universal Size: fits 24-52 inch waist, contains one 16g CO2 Cylinder. Buoyancy 16.5 LBS when inflated with the CO2 cylinder and 29.5 LBS of Bouyancy with secondary oral inflated. Approved for persons 16 years of age and older; and over 80 LBS. Type V Non-Convertible with Type III performance (Must be worn to be legal). 6F Mini Inflator Mechanism, Internal spare CO2 Storage pocket