O'Neill  Men's Assault USCG Life Vest Neoprene^Polyester USCG Approved Personal Flotation Device; Perfect for Wake Sports, Waterskiing, Tubing, and Swimming Minimal Bulk Design Allows Full Mobility, While Anatomical Flex Points Enable Unrestricted Movement NytroLite Foam: 3x Lighter, 10% More Buoyant, and Absorbs 15-20% Less Water Than Regular PVC Foam Low-Back Lumbar Pad Provides The Extra Support You Need In Your Core Snug Fit For The Performance-Oriented Wakeboarder Or Waterskier Looking For A Life Vest Which Won't Move During High Impact