The ASPIRE TWELVE in black is what most imagine when they think of a compression sock. This sock is built to provide compression and enhance circulation from your feet all the way to your knees. The most knowledgeable athletes tend to lean toward using these for both training and recovery because they understand how important it is to provide your feet with the highest level of care available. If you are looking at compression socks for their full intended value and purpose, you have arrived. Building on the tradition of manufacturing the best socks we can possibly make in the USA, we strive to improve our products to match your athletic demands. Using the latest machinery available, the new ASPIRE line from Swiftwick is our proudest moment. We considered smaller feet, the narrow foot and athletic activities that demand compression, but less padding in the toe box. We adjusted the formula for key fibers, more than doubled the olefin content and once again, produced the best sock you will ever wear, guaranteed. We have long aspired to create this sock, so the name was obvious. For athletes, the obvious choice is Swiftwick.