I ordered these socks after I was disappointed with the thinner Business socks of Puma from QualiƤt. These here are a little more compact than business socks, ie thicker and nevertheless comfortably soft. Even if they smell something chemically and I wonder if you can not produce natural socks, I am satisfied after the first wash. Since I had these socks already, but I can, as long as the quality is still the same, to confirm that they are quite durable. I had them until they were worn 3-4 years.