This is the best puff coat I have ever owned, hands down. And I'm not convinced I could ever top it. The price is reason for pause but it's worth every penny. Purchased this to wear on a 3 week winter float trip in the Grand Canyon. Daytime temps hovered around 35 degrees but nights were much colder, and that was when I was wearing the coat. After shivering all day on the river, it was such a treat to dig this coat out. I was never cold in camp, not one single time. Though we were never in the sunshine and some of the beaches were frozen solid. It was very likely below freezing every night. The jacket is very puffy so if you are hoping to avoid that - this is not the coat for you. I think it would keep you warm well into sub zero temps. It's big enough for layering, not a particularly form fitting coat. Hood fit well too. HIGHLY recommend. Also supremely lightweight and packs very, very small.