What's it do? The more you sweat, the heavier most shirts get. UA Vanish 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. Product DNA - UA RUSH™ 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 minimizes odor - Loose: Fuller cut for complete comfort. - Style #: 1389222 - Powered by CELLIANT® - 90% Polyester/10% Elastane - Imported