The O&';Neill Competition Vest lineup introduces innovative Nytrolite Foam Technology, setting a new standard in performance-driven technology. This unique foam, created through an exclusive process using Low Density Polyethylene expanded with Nitrogen, offers exceptional benefits: Lightness: Nytrolite Foam is three times lighter than PVC foam, enhancing comfort and mobility. Water Absorption: Its closed-cell foam structure absorbs 15-20% less water, ensuring quicker drying times and prolonged durability. Buoyancy: Despite its lightweight nature, Nytrolite Foam provides approximately 10% more buoyancy than PVC foam, allowing for the use of less foam without compromising flotation capacity. This combination of attributes makes the O&';Neill Competition Vest lineup the ideal choice for water sports enthusiasts seeking unparalleled performance and comfort. Features: Anatomical Flex Points Strategic Seam Placement Front Zip Reversible NytroLite Foam Technology UltraFlex Combination WARNING - THESE VESTS ARE FOR COMPETITIONS. THEY ARE NOT APPROVED BY THE U.S. COAST GUARD. THESE ARE WAKE AND WATERSKI WETSUIT GARMENTS