He need warm socks for work so I got these and he loves them says they do keep feet warm and they don't slid down his leg. And that is a good thing....who wants to be pulling up socks all day LOL  So if your looking for good socks that do what they are suppost to do ==keep you warm and stay in place== then get these and you won't be sorry. And they wash well too no stretching and fading like some seem to do. Enjoy!!!