Wonderbra Women's Strapless Push-Up Bra #7644 bras closure Seamless foam push-up cups give you famous Wonderbra lift and curves. Why should strapless be boring? Bra has more pretty embroidery and detailing than usual in a strapless...but is still smooth under your clothes. Detachable straps add to your options. Silicone grippers line top and bottom of bra back--so you can play all day or dance all night. Side stays add support.