This shirt is great for workouts at the gym or any physical activities. It's designed for men who want comfort and functionality. It has a slim fit, and the super-light HeatGear fabric doesn't weigh you down. The mesh panels in the underarm and back areas help with ventilation. The material wicks sweat quickly and has anti-odor technology. Just machine wash it cold with like colors, tumble dry low, and avoid ironing, using softeners, or dry cleaning.