I'm 5'5 and 140 lbs. I wear a size 6 in pants, small/medium in shirts and 34B bra.

This just fit awkward. There was no support in the top so I had a saggy uni-boob and the elastic on the bottom gave me a muffin top. Not flattering at all... Returned it and figured I would be better off wearing the medium support Nike sports bra and some running shorts.