This jacket is exactly what I've been looking for. I got it specifically for running in winter, but it's come in handy in a number of other situations. I've worn it in the rain and just to walk in windy/chilly temps and it's been great. I also love the style and look of the jacket! It's super light weight which is great for running, but also keeps me warm. For reference, I am 5'6" about 170 lbs and a large fits me extremely well, with enough room to wear a thick long sleeve shirt underneath. Highly recommend for anyone who spends time outside in fall/winter!