Athletic Works Striped Performance Tee:Material: 76% polyester, 21% lyocell and 3% spandexShadow stripe jersey is a lightweight and breathable fabric that keeps you cool and dryLyocell is a biodegradable and sustainable material Athletic Works T-shirt has moisture-wicking fabric to move sweat away from the skin to keep you dry and lightFlattering seaming for extra mobilityCurved hem to keep backsides coveredCare: machine wash cold, wash dark colors separately, delicate cycle. use only non-chlorine bleach when needed, do not use softeners, tumble dry low, remove promptly and low iron on reverse if necessaryAvailable in Black SootAvailable in sizes S, M, L, XL, XXL and XXXL