oyce Rhianna Rhianna Wirefree Full Support Bra 577, with its clever structure and strong fabric, this 577 Rhianna wire-free bra by Royce Lingerie supports up to a 44GG without any underwire. The 3-section bra cups are reinforced inside for extra support. Special stitching and a wide under band help slim out the sides and eliminate back bulges.