$100 98% Cotton, 2% Spandex. Runs large at bust. Fabric provides stretch. Extra Small, Small, and Medium belts range from 24.5 to 37 inches; Large and Extra Large belts range from 28.5 to 41 inches. Machine wash warm separately. Do not bleach. Do not tumble dry. Do not dry clean. Iron on low temperature setting. Lined bodice. Ties at back neck. Detachable belt included. Hidden back zipper.