Equipped with thicker, more compressive, and ultra-cooling HeatGear, the Under Armour Heatgear OG Compression Shortsleeve is a must-have training gear you'd love to put on first and take off last. Crafted with four-way stretchy fabrics, this sweat-wicking short-sleeved T-shirt brings comfort and unrestricted movement. The tight-fit design with optimum muscle compression offers a body-hugging feel and improved performance. Featuring the original, thicker HeatGear fabric for maximum protection, the Under Armour Heatgear OG Compression Shortsleeve limits pinching, snagging, and chafing to help you achieve new personal bests.