Now, after more than 2.5 years I had to dispose of the first three of 16 pairs bought because they were worn through at the toes and heel. The rest is also become thinner and will probably make the trip in the garbage in the coming months. This is an absolutely satisfactory life for me. The fit has not suffered over time (shoe size 43). The color (anthracite) is slightly faded - but in my experience this is normal. I always washed with 30 degrees and mostly with black and detergent. A Drier was not used.
I am glad that there is still the product and hope that the next gestures ordered 16 copies will have an equally good quality.