The Mizuno Men's GX Sonic 6 CR Jammer Tech Suit Swimsuit combines advanced Sonic Line Design VI and Sonic Light Ribtex UW II fabric for unparalleled speed and buoyancy in competitive swimming. “It floats well in the water and gives your kicking a lot more mobility,” says Dare Rose, World Champion & 3x World Championship Medalist. Read more about the Sonic VI CR in the latest SwimOutlet Tech Suit Review. Features Sonic Line Design VI: New Sonic Line Design construction that is an update from GX Sonic V. Gender specific design that better reflects the needs of elite, modern swimmers. The structure is different per model but, all aid in ease of movement and fast swimming. Sonic Light Ribtex UW II: Updated fabric from GX Sonic V. Increased water repellency creating increased buoyancy. Flat Swim Technology: Enhances a swimmer's flat body line in the water. Having a flat body line mimics streamline position, the fastest, most hydrodynamic swimmer's position--leading to low water resistance and good propulsion efficiency. FINA Approved / World Aquatics approved: Approved by FINA for national and international swimming competitions. FINA approved racing swimsuits have a unique FINA barcode printed on the swimsuit, making it easily identifiable to swimming officials. GX-SONIC Series: Mizuno's most elite swim product, built for competition. Details Fabric: 65% Nylon / 35% Elastane Lining: 65% Nylon / 35% Elastane Care: Hand wash only Chlorine Resistant: No Fit: Compression Country of Origin: Imported