Flowt AK-1, Type II Life Jackets USCG approved and meets recreation vessel requirements of all states Universal Adult fits 90 lbs. and over, chest size 30"-52"; Oversize Adult fits chest size 52"-62" Infant / Child size fits 30 to 50 pounds, Youth fits 50 to 90 pounds Designed specifically to provide minimum buoyancy and turn an unconscious person face up in calm water situations