MUXXN Women's 30s Brief Elegant Mermaid Evening Dress 92% Polyester,8% Spandex (contains lace ingredients is not stretchy) Imported Zipper closure Classic Vintage 1930s Style,Drape Neck,Sexy Backless,Floor Length Made from a Black Light Stretchy Sateen A Deep V at the back,Concealed Hidden Zipper at back Great for Juniors Prom,Wedding Bridesmaid,Evening Party and Formal Event Do carefully read the size guide in the detailed pictures, not the ones by Amazon on the side of the item that you click