I tested these socks with a 14-day trek tour and give additionally the experiences my wife again.
We were with the socks far from satisfactory.
The point raised in that you have to take the socks one size smaller was not known to us at the store, and the seller has not noted. We have taken our cue from the experiences with Falke TK 2 socks and are therefore unfortunately fallen on the nose, the socks were not. Of this we did not get discouraged and just brought a couple more because the upholstery has fallen. So we both had matching at the beginning of the hike socks.
Our tour took us over 15 days through the Corsican mountains. There was little opportunity socks "normal" to wash. Instead, there was cold quick wash by hand. To what extent had the impact on the experience I can not say.
The problem with the socks was that you have gone completely out of shape in no time. The already one size smaller purchased socks are always continued to grow, so you had news the socks more often and getting stronger. They have become the toes getting longer. Compensation procured here later to pull the sock, which of course only makes the problem worse. In addition, the socks in Beerich to the instep have become more, so that here was to determine not a normal seat more. I had sometime good draw every 50 meters on socks so that the bead which has accumulated in the heel area, dissolves. I came across my backup solution switched (Falke TK 2) which these problems no longer occurred after about 8 days. Dressing, walking, happy.
Everything the TK may have 1 socks of benefits that thicker padding which was really enjoyable, pleasant wearing comfort from the beginning, everything is a matter if the sock simply no longer fits after a few hours wear.
For the lack of size data from the outset and for the really poor quality I give one star.