While we would like other athletes especially competitors to labor under the misconception that triathletes feel no pain and know no worldly discomfort, we also know from first hand experience that it's not true. Just like any athlete, we have minute preferences for gear that, while some may find them inconsequential, can affect our performance. The Pearl Izumi Elite In R Cool Tri Jersey addresses one of these by offering one key difference from its singlet cut cousin: back coverage that extends to our shoulders. Again, this may seem silly and inconsequential, but when your finishing time for the discipline's median event is around 6:05:44 of carefully parceled suffering, every little comfort helps. The In R Cool Jersey shares construction elements with the corresponding singlet, including the Elite Transfer In R Cool fabric's cooling, UV blocking, and ability to deform and return to its original shape. It wicks moisture to keep you dry and dries quickly once you're out of the water. It also uses the same aerodynamic panels to decrease the drag you cause after T1. The In R Cool line also uses Pearl Izumi's merrow stitching to keep eliminate irritation after all, this thing has to accommodate a lot of different motions over the course of an event and a 10 inch zipper for ventilation after T2. It also includes two back pockets to supplement the goodies in your bento box. The Pearl Izumi Elite In R Cool Tri Jersey Sleeveless Men's is available in five sizes ranging from Small to XX Large in the colors Shadow Greyblack, Shadow Greymandarin, True Redblack turnout, Whitecherry tomato, and Whitegreen flash. Please note that the In R Cool Jersey is not recommended for use in chlorinated pools.