Black Hop Diva Costume 100% Polyester (Dry Clean Only). Package says this is washable in cold water BUT Tag says Dry Clean Only - we suggest the Dry Clean Only. 100% Polyester (Dry Clean Only). Package says this is washable in cold water BUT Tag says Dry Clean Only - we suggest the Dry Clean Only. This is a BRAND NEW costume in original packaging. This is a great Halloween costume item! Size: Large