I have acquired during long periods of a similar pack of PUMA. Since I was very pleased with these socks, I now have my back such a Pack socks purchased. The socks were washed after delivery only. At first I had a few wearing lint between the toes, but there were very few. In other socks in this price range I had to make the experience that is just the fluff formation at the beginning extremely. The PUMA socks I could not find it. Even after repeated washing, neither the form nor the size has changed.
The only negative point for me is that the socks are not as high as my older. However, this is probably a matter of habit.