I'm 5'7" 208lbs 36DD  I bought the large and the top is a little tight especially around the waist and I have a 32 inch waist. If your waist is bigger than that you're going to be uncomfortable because the waist part doesn't stretch. Beautiful dress the material is smooth and doesn't appear like it's going to be hot on in the summer. The girls are gonna really show because of the plunging neckline I'm going to have to pin it up, I don't have enough room to wear a little camasole for modesty. It's sexy Marilyn Monroe has nothing on me 