I first ordered a small, while it technically fit it was a little tighter than I wanted. Ordered a medium (Kept the small for my daughter) and it fit like a dream! The length is good for my torso which I was concerned about. I am 5’11” and 147 pounds so one pieces can make me nervous. The only thing I did not like is the only way to wear it off the shoulder as advertised is to undo the button on the back. But the extra fabric can tuck in on the back and no one can tell! I have gotten lots of complimen