Microfiber skin provides a smooth look ; Sewn-on elastic on edges of sides and back for custom fit. ; 3 row, 3 column back hook and eye closure. Seamless molded low plunge demi cups deliver extra cleavage ; Contour padded underwire cups are free of removable padding and support panels. Hidden underwires for a smooth contour; Sides and back are made of powermesh for durability and control. Extra low back closure for backless dresses ; Boning at center front, under cups, and side seams; and the tall bottom elastic band helps keep it in place. Hidden front boning for smooth tummy control ; 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