Janeyer Women's 1950s Pin up Vintage Marilyn Monroe Rockabilly Swing Dress Cotton The size is not a big size, please read the size chart in the product description carefully ,if you are not sure of the size, one size up is a good idea. 100% cotton . Classic and iconic style that will never be out of fashion. This swing dress has a really 360 degrees full skirt. Get the full 50's look (as in the main picture) by wearing with a 22" length petticoat, available to purchase separately. Petticoat is not included.