The Under Armour HeatGear OG Compression Long Sleeve is a silhouette you'd love to put on first and take off last. Crafted with four-way stretch fabrics, this sweat-wicking, long-sleeved T-shirt brings superior comfort, coverage, and unrestricted movement. The ultra-tight fit with optimum muscle compression offers a body-hugging feel and improved performance. Rounded off with ergonomic flatlock seams for a chafe-free fit, the Under Armour Heatgear OG Compression Long Sleeve helps you achieve new personal bests.