96% Nylon, 4% Spandex Pull-On closure Hand Wash Only Medium Impact Sports Bra,Pullover bra with wide straps and elasticized band.Available in different sizes,suitable for different body sizes women and girls to wear. WIRELESS COMFORT BRAS:No wires, clips, hooks or straps to adjust, Curve-hugging seamless design.Easy on, easy off pullover bra features a wide, comfortable bottom band and wide straps for added comfort.Sleek silhouette for no show under clothes. Ultra-smooth fabric delivers a highly agreeable feel, offering maximum comfort:Best for yoga bra,sports bra,even sleeping bra,comfortable enough to sleep in. Medium-Support Seamless Fitness Wire-free Bra are soft and supportive,it's stretchy and allows for full movement while wear it.Straps will never slide from shoulders and no need to adjust them.Great for home use and public. About Size:The bras size may not 100% conform to the standard size,please check the Size-Chart image on the left or refer to the Product Description column to get the best size for you.Made of nylon and Spandex fabric; hand wash; do not machine wash, iron or bleach.(Hand Wash Recommended).