100% Polyester Imported Pull On closure Machine Wash Size is smaller, pls take care to choose size (Size S : Height 5'1"-5'3" , Weight: 99-110 lbs / Size M: Height 5'3"-5'5" , Weight: 110-121 lbs/ Size L: Height 5'5"-5'7" , Weight: 121-132 lbs/ Size XL: Height 5'7"-5'9" , Weight: 132-143 lbs ) Tight Fitting,like a second skin.If you do not know your measurement chest size or you prefer the "Slim-fitting",We strongly recommend ordering 1 size up than you normally wear It has no built-in bra; 85% Polyester / 15% spandex, Machine Washable,Cold water Perfect option during various indoor activities and outdoor excursion. Best for outdoor n indoor gym workouts (e.g.running/yoga) Moisture wicking keeps you dry and cool Super soft Tech fabric delivers incredible all-day comfort, Odor resistant keeps you fresh Show more