I work outside, in the Midwest, through cold winters, and my feet always freeze.  In my search for an affordable, comfortable, warm sock, I came across these.  Decent price for the pack, so I indulged, and so far, these are great!  Definitely durable and soft, without being as bulky as other winter socks.  On the coldest of days, I still use toe warmers in my boots, but I'm a giant sissy, and nothing works for me when in single digit temps.  Overall, these really are a great buy.