The Under Armour Coldblack Run T-Shirt features revolutionary Coldblack technology with minimum UPF 30+ sun protection from harmful UV-A and UV-B rays, so you stay cooler and more protected than ever before. Strategic mesh insets provide performance ventilation. 360 degree reflectivity adds safety. HeatGear® fabrication provides superior moisture transport and comfort. Performance back neck tape, regular fit. 88% polyester/12% spandex. Imported.