These are the best socks I've ever owned!  They are warm, soft and fit well.  I don't like taking them off!  Very thick, and after four washings they hang around the calf quite well and don't slip down, so far. I like them so much that I ordered more of them so I wear a fresh pair every day for a week.  As per the vendor recommendation, since my feet sweat a lot and then get cold I purchased the J.B. Second Skin CoolMax Anti-blister Liner socks from Sox Shop as an inside liner.  I want to mention that one should purchase a bit bigger sized shoe, or if you wear two pairs of socks as I do, wear both pairs when trying on new shoes.