10D or 12D in stock. 70005D more sizes soon. click details to see picture of the back. this is a D cup . bathing suit is made to give extra bust support while swimming. This swimsuit is constructed of the revolutionary chlorine proof fabric, ENDUROTEXtm. Recreational and fitness swimmers will find the fabric's performance longer lasting and more durable. In order to preserve the integrity of your swimsuit it is reccommened to rinse in cold water with mild soap and line dry indoors after each use. This swimsuit has a crinkle texture and is very comfortable. suit has a soft foam cup.