I prefer not to have certain things "shrunk-wrapped" as it is still needed.

I always wear cotton underwear, but wear all kinds of synthetic/wool outlayers. My thought is that if I'm worried about freezing to death, I probably don't have fire, or if I do, I should be able to take my wet underwear off. Sweating has not yet been an issue. I would love to find some wool underwear that doesn't have the itching side-affect.

BTW, does anyone know if the SmartWool(R) brand (or any other wool brand) is actually 100% wool, or is there other artificial stuff in it?