I love this jacket. Originally I purchased and returned it to a running store, having felt profound buyer's remorse at purchasing a $180 running jacket. I'm a novice runner and didn't think I'd earned it yet. When I saw the pink one on Amazon for $70 less, I purchased it. I'd tried on every running jacket out there in the hopes of finding the perfect one. Perfect for me meant light but warm, stretchy, good fit, and zip side pockets (for gloves). Ideally, it also meant an inside pocket where I could keep my iphone and have the earphone cord run up from the inside rather than the outside. This was the first jacket that had everything I wanted AND fit me. Almost every other jacket, I had to go up to a large to fit over my hips. My hips are big, but they're not gargantuan! Going up to a large meant the fit was too big everywhere else! This jacket fits perfectly in a medium. What is absolutely astounding is that it is lighter than cold weather running shirt. It weighs next to nothing. And I've gone out running in weather around 20 degrees and been perfectly comfortable. I'm sure I could go out and be comfy in even colder weather. It's wind and water resistant without having that non-stretchy wind resistant fabric you normally see in jackets that offer weather resistance. It's more like technical fabric. That must be why it's so pricey. It's practically magic that Sugoi could make a jacket that feels like nothing but offers everything. If you are a runner who enjoys winter running, you won't be disappointed. I haven't worn it yet in weather warmer than 40, but I suspect it will fare well when it's not super cold.