Fit & Design: Loose fit Ribbed crewneck Side-vent hem Material wicks sweat & dries really fast 4-way stretch material moves better in every direction Technology: UA RUSH™ is infrared technology that reflects your body's energy to help you work harder & recover faster Powered by Celliant Additional Details: 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 clean