Not a ton, but I've done it. The basic approach: wool, wool, thinsulate if you're fancy, more wool, in layers. Something that effectively blocks the wind on

Not a ton, but I've done it. The basic approach: wool, wool, thinsulate if you're fancy, more wool, in layers. Something that effectively blocks the wind on top. No cotton. Good boots and gloves. Make sure you've got no exposed skin.