Super-light HeatGear fabric delivers superior coverage without weighing you down. Mesh underarm & back panels for strategic ventilation. Material wicks sweat & dries really fast. Ergonomic design keeps seams off high abrasion areas & increases durability. Hybrid raglan sleeve construction for added range of motion & comfort. Write-in locker tag on back of neck for your initials or number. Compression: Ultra-tight, second-skin fit.