Dreagal Vintage Style Rockabilly Swing Party Cocktail Dress With Belt 97% cotton Material:97% Cotton, 3% Spandex, Well Made Lightweight Strech Fabric, Slimming Cutting, Wonderful for the Hot Environment, Not Seeing Through, No Need Slip Underneath; Features: Sleeveless & Boatneck; concealed zipper at back; Comes with removeable belt as pictures show; Machine Laundry / Hand Wash COLD /Low Iron / Lay Flat Dry Package Contents: 1x Dress (No accessories included) The size is different from each style and is not a big size, please read the size chart in the left picture carefully(Not the Amazon size chart) ,if you are not sure of the size, one size up is a good idea.