Skims Ultimate Collection Push up Plunge Bra in Sienna NWT New with tags The Ultimate Bra redefines traditional push-up bras by enhancing your natural bust shape and completely transforming the look, shape, and fullness of your bust. This bra is made of a super soft sheen microfiber fabric with extra compressive side wings for smoothing. With a comfortable, concealed underwire and premium teardrop shaped foam pads, this bra sits seamlessly under clothing. Designed for a snug fit.