I literally live in this jacket. I've worn it every day so far this winter. Best purchase I ever made! I live in the mountains and this jacket is so toasty warm and looks super cute. Huge fan, I wish I could afford 2 or 3 of them! I'm 5'7, 135 with a short torso, and long arms, and the medium fits almost perfectly- the sleeves are a little short for me. For some reason in the down version of this jacket (not synthetic), the small was perfect and the medium huge. So, be aware that the sizing is different.