I've had these socks a couple months now and so far so good. I have large calves and needed socks that would come up over them and stay so I can wear my Ariat Ramblers. I have noticed that after a couple months the socks are starting to ride down just a little but they're still better with my boots than shorter socks. They do "pill up" pretty significantly but the elastic is in tact and they are quite comfortable. I'll buy them again when I need to.