Minus33 Merino Wool Boy's Expedition Wool Mountaineer Sock Winter-mountaineering (pack of 1)

Bought these to try during an Aconcagua trek. Warm, very very warm. Enough to make me switch brands warm. Buy them, keep your toes.

How these are so warm without being nearly as thick as many of my other heavy Winter socks are is a mystery. Come up almost to the knee. Not tight, but just enough to stay completely in place and not slide down a bit. I've worn these several dosen times prior to this review. Hate those "just opened the package and look good. 5 stars" reviews. They are pointless and worthless. But these socks are really great. On the thin side of a 'mid-weight' sock so they can be worn with regular shoes, yet warmer than my super thick hunting socks. Feet don't overheat if you wear them inside all day either. Excellent quality, always warm without being too hot, pretty much the perfect cool to really cold weather sock. Keeping your calf warm too really helps too! Price is high, but worth it. After several dozen washings I can find absolutely no indication of wear. No pilling or pulling. No loose threads. Just a superior sock.

Great sock!!! Runs big though - I got medium and they seem WAY to big

The socks are warm but not happy with the build quality as the toe end of the left sock has some threads that look like they are coming off and will not last very long. I dont know if its the pair i got or they are all made like that. These are premium socks and I expect them to last me a few years atleast. Its not even a week of wearing yet and I have started to see deterioration. Very disappointed..

They are a little on the large size, so take the smaller size if you fall inbetween sizes. However they are super warm. I wore then in Norway chasing the Northern Lights. Up to minus 12 no problem.