These hoods are very warm. My only complaint is they only offer one size. The hood is far too big. I wear a hat under my hood just to take up some of the space. I love the way it wraps around the jaw. Just wish it didn't have all the rise in it. Width is nice and adjustable but the height is set up for a giraffe. This hood is still the best option for 20 below temps and offers great wind protection.