Nylon Imported Not Approved By the U.S. Coast Guard, Vest Is For Competition Waterskiing and Wakeboarding NytroLite Foam: 3x Lighter, 10% More Buoyant, and Absorbs 15-20% Less Water Than Regular PVC Foam Segmented Foam Core And Anatomical Flex Points Enable Unrestricted Movement Front-Zip Design Allows Easy Exit And Entry Snug Fit For The Performance-Oriented Wakeboarder Or Waterskier Looking For A Life Vest Which Won't Move During High Impact WARNING - THESE VESTS ARE FOR COMPETITION WATERSKIING AND WAKEBOARDING. THEY ARE NOT APPROVED BY THE U.S. COAST GUARD. THESE ARE WAKE AND WATERSKI WETSUIT GARMENTS