The Castelli Free Sanremo Short Sleeve Trisuit is thoroughly engineered for race-day performance. Meticulous preparation goes into your race day, and possibly even more into Castelli’s Free Tri products. They use eight different fabrics to make a men’s two-piece suit, with every fabric, stitch and component carefully chosen and tested to make this suit fast yet functional for your next race. 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. Details are carefully thought out, like the Free aerodynamic yet high-capacity pockets, Speed Hooks that can secure your jersey and prevent it from riding up during the swim and bike, and the KISS Air anatomical seat pad that gives more padding than your traditional tri liner yet practically disappears on the run. 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. Castelli think it achieves a good balance between protection, cooling and outright speed.