100% Polyester Size may run small, please order one size up if not sure Zipper closure Padded enough for "no bra" option Sexy open back and ruched bust design Lacey neckline decorated with rhinestones enhances the elegance of this dress Perfect as bridesmaid dresses, wedding guest dresses, evening dresses, ball gowns, prom party dresses, military ball dress.etc. Ever-Pretty gives you stylish and affordable dresses with unique design. You deserve this beautiful bridesmaid dress for almost all casual or semi-formal occasions, remember not only wear it for once!