As our ultimate endurance jersey for the hottest conditions, weighs 25% less than the standard UMA GT C2 EVO jersey. The body is engineered with two new, ultralight textiles for breathability and cooling airflow that rival the DYORA RS while maintaining the GTs comfort-tuned fit. The sleeves are also updated, using the same textile as the DYORA RS Jersey for ultrabreathable, muscle-wrapping support thats inspired by racing equipment but shaped for streamlined comfort. It (UPF 15) is so lightweight, breathable, and cooling that we recommend wearing sunscreen beneath it.