I have sensitive skin and shied away from wool long underwear until I found Minus33 clothing. It is Merino wool, but is soft as heck and it wicks away moisture like crazy. That is always my biggest challenge. Getting sweated up and then being cold. The Minus33 long underwear is amazing stuff.

I also like the wool outwear with Windsheer layering. I have a wool jacket with a Windsheer layer and berber liner. It is incredibly warm. use some fleece for layering under it and between the Minus33 long underwear and I am set. Oh yeah, and I love me a fur lined Mad Bomber hat!