Layering is the key to keeping the cold at bay, and layers starts at the base level. The Under Armour Tactical Crew Base Long Sleeve Shirt is Under Armour's solution to the base level that features a comfortable fit that isn't strangling and uses Under Armour's history of fabric technology to offer superior and intelligent insulation.
Fitted: Next-to-skin without the squeeze
ColdGearå¨ Reactor is intelligent insulation that adapts to your activity level for the right breathability & warmth for what you're doing
Fabric has soft, brushed "nodes" next-to-skin for the right warmth that breathes as you move
Material wicks sweat & dries really fast
Anti-odor technology prevents the growth of odor-causing microbes