97% cotton 3% spandex. Filling - 100% cotton.nGentle cycle machine washable (complete laundering instructions on the inseam tag).nAvailable in two adjustable sizes (Regular and Large).nUse one time or another.nLook like your new little black dress!nDedicated to being on the cutting edge of fashion, the hotslings brands a fresh perspective to traditional baby and parenting products. Perfect for active parents who want to simplify their lives but not compromise their style.