When I tell you that I've never received so many compliments on my life until I wore this costume I'm not lying! This thing is beautiful! For starters, I'm 5'5, 150 pounds, with a 36D bust and I ordered a small. So it wasn't uncomfortably tight or anything! The way the costume sits on my body is like it was made for me and I reallllly love it. I felt super confident and sexy and that's really all you can ask for with a Halloween costume.