I have not worn the product yet.
However, I am very upset that when I received the socks, a sticker had been put over the original label, and said the socks now have 30% polyester.  I was trying to avoid polyester, as my feet don't like it.  I looked at the labels for all the merino socks, and chose these because they were one of the few that did not have polyester.  Very disappointed.