The original Under Armour loose fit training Top. The Under Armour HeatGear Loose Longsleeve Thermal Underwear Micro-pique fabrication resists picking and pilling for durable performance through any workout. Lightweight HeatGear moisture transport system dries quickly, keeping you cool and comfortable. Versatile Longsleeve design for performance in any temperature. Antimicrobial technology bolsters odor suppression. Heatseal logo and Lockertag. 100% 3.5 oz PolyArmour. Imported.