ToBeInStyle Women's Essential Ribbed Racerback Tank Top 5% spandex Pull On closure The latest craze is soft, seamless and smooth. The Racerback Tank is all about style with a curve-hugging fit. Ultra fine ribbed detail Scoopneck. Slim straps. Material: 57% Cotton, 38% Polyester, 5% Spandex Hand wash in cold water. Line dry. No bleach.