Heat Gear Armour is our original performance baselayer-the one you put on first and take off last. So we made it extra comfortable by wicking sweat and stretching so you can move no matter what. Super-light Heat Gear fabric delivers superior coverage without weighing you down. Strategic mesh panels for added ventilation where you need it. Material wicks sweat & dries really fast. Anti-odor technology prevents the growth of odor-causing microbes. Ergonomic design keeps seams off high abrasion areas & increases durability. Wide, exposed elastic waistband with wordmark detail.