“My feet are a size 12.5 and the XL sock fits almost perfectly. I have boughten probably 25+ pairs of Aspire socks over the past 6 years because they are just so darn comfortable for running and other high-stress activities. I don't like super low socks so I stay away from the Aspire 0. However, the Aspire 1 is high enough to protect against shoe rubbing but still low enough for my liking. It takes a lot of use to start to see decent wear, however, even then they remain comfortable enough to continue using for less-obtrusive tasks (light walking, yard work). I highly recommend the Aspire series as well as many other types of socks Swiftwick produces.”
