I originally bought this because I needed a windbreaker. When I received it I was dismayed that it didn't fit true to size. It runs rather small, probably about a size smaller than it's marked. I wound up giving it to my mom as a birthday present since she runs a size smaller than me. I know I know, cheap of me but if it fit her and if it was her favorite color I wasn't going to bother returning it. It's great for wind, that slight chill in the air but light enough to breathe. Recommended, but make sure you buy the size bigger than you are if you want it to fit!