Actually I bought this Dress on ebay I Love all the Colors and I wear xl, My Bust is 42 DDD and it doesn't fit me, so if your top is is smaller than mine it will fit you.I only tried it on once.I honestly think this dress could fit a size Medium, I'm trying to put more stuff on in my Closet daily,Please take a look!!. I have L'artiste Sandals listed, size 10 Boston Proper sets with Tag still on them. I think you will love this dress, Thanks for looking.I'll sell it pretty close to what I paid for it,But come down some. It says Xl wear they ask for the size on here I put XL but like I said it would fit a medium Also I Believe !! Think it runs small for the size xl pit to arm pit 19 by 38.5 Long