Onyx M-24 Manual Inflatable Life Jacket PFD - Realtree Max-5&reg; Camo Manually inflates when the wearer pulls the Jerk to Inflate handle Equipped with back-up oral inflation For persons 16 years of age and older; and over 80 lbs. Not recommended for non-swimmers or weak swimmers Minimum buoyancy of 22.5 lbs. when inflated