These socks seem to be well made, but they are quite a bit thinner than I was expecting. The package says "midweight" (which is pretty accurate), but Amazon's description doesn't include that little tidbit of info. I must say that the elastic is strong so I haven't had any problems with them sliding down my leg, and they are quite comfortable. Plus, at only $3/pair I really can't complain. I guess time will tell how well they hold up after repeated washings.

If you're looking for a more substantial non-wool boot sock, I recommend going with the "Dickies Men's Acrylic Thermal Boot Crew 2-pack Socks" instead. They're about twice the price per pair, but also about twice as thick!