NWOT The more you sweat, the heavier most shirts get. UA is light, extra stretchy, breathable, and fast drying so you can work hard without getting weighed down. It's everything you need to eliminate distractions. UA is infrared technology that reflects your body's energy to help you work harder & recover smarter Material wicks sweat & dries really fast 4-way stretch material moves better in every direction Side-vent hem Odor control technology Twisted T Back Extra Large arm openings Loose fitting Wash and wear Dries quickly