Pearl Izumi's Elite In R Cool Tri Singlet features a combination of technical fabrics that are strategically placed to deliver you optimal performance. Pearl Izumi uses its textured ELITE Aero fabric on the shoulders to enhance your aerodynamic profile, and Direct Vent mesh panels are included on the back for increased ventilation. The torso is made with ELITE Transfer fabric, which is designed to manage moisture and offer excellent muscle support. Pearl Izumi includes its Coldblack treatment that aids in temperature regulation and blocks harmful UV rays. The singlet also has a 10in zipper for additional venting, and two back envelop pockets offer you a place to store your race nutrition.