I'm really happy with these wool socks. They are densely knitted, with 30% wool for warmth but no itchiness. I would describe them as medium-weight. Not as thick as a hiking sock, but considerably thicker than a regular sock. They are true to size and fit snugly without feeling constricting. And the dark grey color is very versatile, with subtle details provided by different stitches used in the knit construction of the sock. Recommended!