OnGossamer Shimmy Bump It Up Bra (013811). This bra is made of a soft, slightly shimmery fabric that glides underneath your clothes. Bump up your cleavage with this enhancing bra! This bra is made of a super-soft and slightly shimmery microfiber. Molded, contour, underwire cups have medium graduated padding for enhanced cleavage and support. Wings have contrast-color lace trim and elastic on the top and bottom. Wings are made of stretchy fabric for custom fit and comfort. Non-stretch center gore for anchorage. Seamless sides for a smooth look under clothes. Elastic shoulder straps adjust in back with metal hardware.