Carnival Women's Low Plunge Backless Seamless Molded Longline Bra cotton bra|nylon bra|spandex bra Imported Hand wash Microfiber skin provides a smooth look Seamless molded low plunge demi cups deliver extra cleavage Hidden underwires for a smooth contour Extra low back closure for backless dresses ; Fit Tip:If you are between cup sizes,suggest you size down. Also, be sure to not judge the fit until you put your dress on over it. The dress will impact the way the bra sits. ; Contour padded underwire cups are free of removable padding and support panels. Hidden front boning for smooth tummy control