Under Armour HeatGear Compression Short Sleeve T-Shirt HeatGear moisture transport ensures fast drying performance that keeps you cool and won't Delivered in the signature compression fit for bolstered muscle support and increased circ UPF 30+ for protection from harmful sun rays whilst out running or exercising. Heatseal logo and back Locker Tag - means the logo won't peal off or cause chaffing. Perfect beneath your pads or uniform.