It has been really hard finding men's ankle socks for my husband that are thick and don't develop holes and/or unravel at the top after only a month.  Bought these for my husband and he really likes them, and said they are a great improvement over the ones available in local stores.  They are thick and the bands on the bottom make them fit well, keep their shape and yet he said they are very comfortable.  I will be ordering more of these!