Well, I'm wearing the Lovat Green pair today. They fit quite well (I ordered 9 1/2 - 13) and look good. They're not heavyweight. I'd guess they were medium. There's no flesh colour showing through, so they're thick enough. They feel OK: normally I don't like the sensation of man-made fibres, but I don't seem to be aware of them, so perhaps the quite high wool content does the job. Anyway, I'm quite satisfied, so I'll probably buy another batch.