These are high-quality, comfortable wool socks from which I will get a lot of mileage. However, they are way too thick for me to use as liners. They are about the same thickness as the standard warm weather hikers. In addition, they are "grabby" and don't allow other socks to slide past them, which is a terrible characteristic for a liner sock. I can't recommend these as liners, but I can definitely recommend them as regular socks.
This review was written in the old system and had content requirements that are different than reviews written today.