As far as the quality of the wool, these are absolutely fantastic. They do not itch, Do not smell. Dry really fast. Clean up really easily. Fit exceedingly well. Keep you warm in the cold and do NOT heat you up in the heat. In fact, in the heat you are better off in one of these than without, because it instantly wicks away your sweat to give you a better cooling effect than a bunch of sweat running down and dripping ever can.