Warm! Dry! Great!
I hiked Alaskas arctic tundra for more than two weeks over a blanket of snow. Temperatures were never above freezing. My two pairs of SmartWool Heavy Crew socks kept my feet warm and dry. My only regret was that I did not purchase four pairs. The cold, damp environment would prevented my boots from drying through the night. Thankfully, the wool fiber absorbed the moisture trapped in the boot to protect my feet.