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. 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 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 odorWash garment inside out Machine wash cold with like colors Use only non-chlorine bleach when needed Tumble dry low Do not iron Do not use softeners Do not dry cleanStyle #: 1383973 Powered by CELLIANT® 90% Polyester/10% Elastane Imported