Wonderbra Ultimate Backless Bra Part of their best-selling Ultimate Silhouette range, this seamless design has been crafted from soft fabrications for ultimate comfort delivering improved support perfect to transition from day to night. Designed to be worn with all your backless outfits thanks to the well-structured design, this bra features patented hand support technology inside the cups to create wonderful cleavage and a natural lift. With adjustable straps for an improved fit, this under-garment is secured with a hook and eye fastening to the rear.