Okay, so first off let me start by saying the size chart runs large. I am 5-6 and 128 lbs, so I ordered the medium and it was huge on me. It looked like I was wearing a bathrobe. I sent it back, and after speaking with the seller, it became clear I was really looking for the close fit on the model. I thought the smallest size, the extra small, would be TOO small, but I am glad I went with it because it fits perfectly. Not too tight and not too large. I usually head reviews that say things like, See full review