90% Polyester, 10% Spandex import Zipper closure Style:floor-length,thigh high slit,formal prom gowns,give you an eye catching and sultry silhouette. Material:polyester + spandex,the fabric is stretchy, feels soft and comfortable Suitable for:It's such a timeless and chic look!The gorgeous look is sure to shine all season long! Perfect for night Club, Cocktail, Formal, Summer, Party, Prom, Evening casual,cocktail party Off shoulder evening dresses are inspired styles to capture people's eyes,and the close-fitting design makes you more elegant and charming. There are five different sizes to choose for you: S(US 4-6), M(US 8-10), L(US 12-14), XL(US 14-16),XXL(US 18). Please select the size which is more suitable for yourself. Just enjoy yourself.