Champion Women's Double Dry Seamless Full Support Underwire Sports Bra Body: 91% Nylon, 9% Spandex Inner Cup: 87% Nylon, 13% Lycra Spandex Inner Frame: 90% Nylon, 10% Spandex sports-bras closure Fit: Compression--Supports your muscles to prevent fatigue during intense training. Fabric Type: Jersey--A stretchy (plain) knitted fabric, without a distinct rib, used widely for T-shirts Fabric Type: Rib Knit--A textured knit that has the appearance of vertical lines. It is highly elastic and retains its shape Performance Technology: Champion Double Dry --Double Dry rapidly wicks moisture from the body to the outer layer of fabric where it evaporates, giving you the ultimate in moisture management. Seamless--Garment is constructed without seams to provide freedom of movement and prevent skin chafing/irritation.