Keep your torso cool and protected from the sun with Under Armour®'s Women's Coldblack Short Sleeve Running Shirt. Regular fit. Crewneck. Revolutionary Colblack® technology blocks out sun and UV rays. UPF 30+ fabric protects from UV-A and UV-B rays. Strategic mesh insets for improved ventilation. 360 degree reflective details for safety. Performance back neck tape. Body: 88% Polyester / 12% Elastane. Insets: 100% Polyester. Imported.