Free is fast thanks to the water-repellent fabrics that are also wind tunnel tested for on-bike speed. And Free helps you perform at your maximum by providing just- right muscle support and keeping your body cool. High-capacity pockets, SnapLock fastener will prevent yout top from riding up during the swim and bike. Even the back fabric shows the engineering in this garment: wind tunnel tested for on-bike speed, it also provides exceptional cooling while offering UPF 16 protection. That means that 94% of UV rays are blocked, providing a reasonable level of protection, but it can be combined with sunscreen for those with sensitive skin.