The quality I find very reasonable for the price, I do not have the impression that I notice with holes soon.
Unfortunately, the size is not well specified. My shoe size is depending on the shoe model 46 - 47, most likely 46 or 46.5, and yet I have the socks ordered (thankfully) in 47-49. The size ansich here is ok for me, which I can not imagine that someone can wear the socks still pleasant with shoe size 49. The part of the leg is relatively close but unfortunately fall, so I already can see an imprint on the skin wear even after ~ 2 hrs. That should not be.