You lose 80% of your body heat through your head. To survive a Duluth winter, Minnesotans need an all-encompassing piece of headgear that cooks and, of course, looks fly as hell. The trapper hat is equal parts "Bow on my arrival" and "Yea, I'm freezing my ass off." It's a status symbol and, if you lose a generator at your International Falls cabin, it might save your life.