Me: 5'9"/160/36C and ordered a large. WAY too big! It was not only far too big around the chest and stomach area, but it was also too long which almost never happens for a taller person. Sugoi has three fits, pro (form),semi-form, and relaxed. This is supposedly semi-form, but I'd say it is relaxed and then some. I wanted to keep it because of the great price, but I know I'd never wear it. Too bad, nice color and fabric, and the two back pockets seem like they would work well, as in, not sag to the side if your phone was in one of them.