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Castelli Men's Free Tri Top
SpeedFreak ventilated race fabric on front
Velocity mesh back gives wind-tunnel-proven speed on the bike
UPF 15 rating blocks 93% of UV rays
Looser fit for airflow between top and skin
Self-fabric collar
THOROUGHLY ENGINEERED 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 fasteners on both the Free top and Free short link together to prevent your 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 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.