I bought these as my first pair of Merino wool socks. They are comfortable and I have no complaints about the product yet, but I was mislead into my purchase by the product description on Amazon. These socks are NOT 51% Merino like the description states. They are in fact 41% Merino, and that is what is listed on the official Darn Tough website as well. Had I known this information beforehand, I would have chosen a different sock.