I LOVE Swiftwick socks!!!! I've been cycling for 27 years and found Swiftwick socks about 8 years ago. I have worn Aspire socks ever since! Training & racing both, there is nothing better for your feet!! I only have one criticism (which I sent to their R&D folks with many examples) The connecting seam at the ball of the ankle separates over time. I machine wash my socks in cold water and hang them to dry, so even with proper care, this happens consistently. I hope that they address the issue in manufacturing as these are truly the only socks I ever wear..... and I LOVE THEM!!!!