Astral GreenJacket Life Jacket PFD for Whitewater Rescue, Sea, and Stand Up Paddle Boarding Intended for whitewater rescue, sea, and stand up paddle boarding (SUP). Features a 500 denier Cordura nylon shell and a 200 denier high-tenacity nylon liner. Pullover entry, PVC-free Gaia and PE foam inserts, YKK self-locking Vislon teeth zipper, and heavy duty acetal and stainless steel hardware. Weighs 2.9 lbs (46 oz). The GreenJacket has a buoyancy rating of 16.4 lbs and a USCG Approval Type V. Measure your chest and select your size: S/M for 31-37 in, M/L for 38-44 in, and L/XL for 45-51 in.