The gown is made of Nylon and Spandex.The pictures don't do it justice! The most attractive feature of this cocktail dress is its built-in bra; triangle lace insert; black sequins on the top and a triangle fringe. This dress may not bet appropriate for formal occasions, if you're planning to go dancing however; it will make you a star! The fringe which is nearly invisible on the pix will make your every move even more alluring! Yes, there is also a provocative slit in the front, right above a knee. If you want to look SEXY on the dance floor, that's the dress! Dry clean.