Size & Fit Tight compression fit moves with your body for athletic comfort Product Features Hybrid raglan sleeve construction for added range of motion and comfort Super-light Heat Gear® fabric delivers superior coverage and eliminates chafing, pinching and snagging Quick-drying fabric with mesh underarm and back panels for strategic ventilation Printed UA logo at the left chest and upper back for a stamp of athletic performance Write-in locker tag on the back of the neck for your initials or number 84% polyester, 16% elastane Machine wash The Under Armour Heat Gear® Short-Sleeve Training Top is imported. Train like the pros in the Men's Under Armour Heat Gear® Short-Sleeve Training Top, designed for peak performance from the training room to the arena. The original Under Armour baselayer takes your workout sessions as seriously as you do, with an ergonomic, super-lightweight design comprised of breathable materials, sweat-wicking technology, and ventilated panels for strategic ventilation where you need it most when you turn up the intensity and break through plateaus.