There are few really cool choices out there for warmth. As far as I see the only choice is an Ambassador Hat. I am a big fan of the persian lambs wool (very special lambs wool actually). The not so obvious choice is the mink version of the same hat. I don't know what to think. I have some kind of vague memory of Lee Marvin sporting one of these in a movie but alarm bells ring. I am no big fan... What do you guys out there say? Persian lamb or mink?