I’m usually a medium in everything but I heard people sized up in the costumes from this company so I thought to for the bathing suit as well. The large fits me perfectly and looks as beautiful as the picture! The top is really sturdy and holds up well to me. I will suggest if you have a bigger bust size then maybe the top wouldn’t work for you. Just a heads up for anyone wondering that cause it fits me snug but not too snug and I’d say I have a average to small chest size, it doesn’t stretch in the front really and the padding is more for like my size chest I’d say