This is a two-piece swimsuit for girls. It was a gift, but we haven't had a chance to use it, so I don't know the sizing. Please note that there is some deterioration of the fabric on the center of the back of the pants. There is a cup insert, but cups are not included. The front of the swimsuit is fully lined. Since my child has outgrown it and we don't plan to use it in the future, I'm offering it at a low price. Thank you very much!