First, this sweater is gorgeous, and perfect for fall, or for me, perfect for Florida winters. You should be aware that it shrinks in the dryer quite a bit, so hang to dry if it fits you perfectly, or order a size up if you want to heat dry it. I'm 5' 7", 142 lbs, 36-38B chest and the Medium is probably what most women would say is just about a perfect fit, but it was a little looser than I wanted because I like a close, tailored fit. So I washed and dried it. It shrank a full size, definitely a Small now, and a little more snug than I want (but I've been losing weight so it will eventually fit). For now, at this good price, I went ahead and ordered it again in the Large because I want to put it in the dryer, and I ordered a second color, because it really looks nice on.