This is my hat. If you know me personally, you probably recognize it: this has been my winter hat for about 35 years now. I bought it from a boutique in Asheville, North Carolina around 1987, give or take a year. My wife has one too, which we bought in the same store at the same time. Hers is white, mine is black. They are both made of wool, although her hat is softer than mine.
It is incredibly warm, and it fits my (big) head very comfortably, which is why I have never wanted, or worn, a different winter hat.