When it comes to race day performance, look no further than Castelli's Free Sanremo sleeveless tri suit. Instadry Speed fabric boasts fast swim times and and quick drying, and the snug, streamlined cut provides excellent comfort whether you're running, swimming, or on the bike. The Velcity fabric on the back is wind tunnel-tested and keeps you cool. The KISS Tri chamois pad is optimized for the unique needs of the triathlete, with support and padding when you're on the bike and a slim cut that won't interfere when you're running. Giro gripper elastic in the legs keeps everything in place and flatlock stitching eliminates chafing. The Sanremo top features a full-length zipper and easy ventilation, making this tri suit ideal for longer distance events.