Swim Systems F792-ROJO Shirred Underwire Tankini Swim Systems. $84.00. This shirred underwire tankini not only offers amazing D-cup support but also has a beautiful empire waistline to camouflage tummy flaws. Matching colored lining and power net. Welcome to your D-cup one stop shop. Versatile criss-cross back straps that are adjustable. A hidden underwire built-in bra with an adjustable hook to give maximum support. nylon