Two years ago I bought four pair of the Patriotic Line of socks that Swiftwick offered. I use these socks specifically for cycling. I know that in the two years of having these socks, I have worn each pair no less than one hundred times each pair. The socks show no sign of wear other than the white stars have frayed just a bit on one pair. The heals and toe area where socks typically wear out look as good as new. In all honesty, Swiftwick socks are the best socks I have ever worn. I hope that Swiftwick will continue to make more of the Patriotic Line of socks than what is shown on their web-site now. I only bought four more of the "eagle" socks because they are being discontinued, not because the others wore out! I have also bought some of their "National Park" socks, which I have yet to wear out also!