I'm 5'9 193 36 DDD & I ordered a Large. Skirt was a lllliiiiittle bit tight (but I do have a big booty) I couldn't wear a bra with the top because it was absolutely no extra room. Top does help hold chest up with nice support. Jacket was a little big. Overall this outfit was cool. I wore the jacket off the shoulders and got so many compliments all night.