I ordered the medium in the navy/green dress. I am 5'6" 153 lbs, size C cup. It fits very well, but I feel it could be more fitted. The dress has a lot of give and I felt it was a bit lose on my chest and waist. There are "drawstrings" at the waist but unfortunately those are just for decoration, they don't actually allow you to tighten the dress. Because the dress is stretchy I'm afraid it might become loser and if I lose a few pounds I'm sure it will hang too lose. I'm ordering a small to see if that is a better fit for me. The length is great. The dress is slightly sheer on the skirt area so I will be wearing a slip with it.