Hincapie constructed the Flow Tri Top from the highly breathable RaceFlow fabric with a hydrophobic treatment. It glides through the water with hydrodynamic properties akin to the newest swim skins. It also dries very quickly when you get out, improving comfort post T1. Additionally, ReactorMesh stretch mesh panels with Coldblack technolology provide cooling airflow and actually reduce the temperature of the fabric by reflecting, rather than absorbing heat. With all of these other technological wonders taking place, it's easy to forget that the Flow Tri Top provides UV protection with a rating of UPF 50. That comes in handy when water rinses off your sunblock, leaving you vulnerable to the sun.The Tri Top features a 34 length zipper in order to both ease entry and exit and to allow on the fly heat dumps. One lower back pocket provides food storage for long races. The Flow's fit is compressive to provide more muscle support than most tri tops. Hincapie's ergonomic patterning hugs the body tightly to not only provide support, but also to reduce drag in the water or on the bike.The Hincapie Flow Sleeveless Tri Top is available in six sizes from Small to XX Large and in the colors Whiteocean or Blackred.