Under Armour HeatGear Graphic Running T-Shirt - Men'sStay fast and fit with the Under Armour HeatGearŪ Graphic Running T-Shirt. Made with ultra-light UA Tech fabric, this running t-shirt helps you chase down your fitness goals. UA's Signature Moisture Transport System pulls sweat off the skin, keeping you cool and dry as your run heats up. Anti-odor technology keeps you fresh and focused on your fitness. Smooth, flatlock seams reduce chafing and enhance comfort. HeatGear technology is best used in weather between 75-100 degrees. 100% polyester. Imported.