I did the measurements how they suggested, and came out to a 34. A small tritop is 31-33, and a medium is 34-36. So I'm right at the bottom of the medium. I'm afraid of getting it and it not binding well though. But I'm also worried that I'll get stuck in the small or something lol. I've never had a binder before. I have a C-cup chest, and I'm 5'7 about 150lbs. What would you guys do if you were me?