Christopher, are you planning to use the liner as a sock only, inside a sock, and for what conditions.
When I used to wear leather boots, I used a liner. With trail runners, not needed. Some times I use a liner for a sock only. Plain nylon dress socks work fine too. For winter a liner.
Don't know if they are still available, but I have about 6 pairs of REI silk liners, which I bought a very long time ago. I have others too, but the silk ones are my absolute favorites.