I got these socks about a month ago, and have worn them frequently to work, and around town.  It is cold at work, cold enough to wear a jacket all day, and having these thick socks on keeps my feet from freezing.  They are warmer than doubling up on normal socks.  They are still in excellent condition as well.  I wish they had them in plain colors, but that's not really a big deal.  Make sure you have plenty of room for these socks in your boots/shoes because they are quite thick.