The Crew Socks are designed specifically for cycling, but they’re also quite good for training or running as well. Using synthetic olefin fibers, the socks effectively keep sweat to a minimum while controlling blisters, temperature and odor. You'll also like Y-heel contour which holds the socks to your heels (so the sock doesn’t move with the shoe). Other performance-improving features include hidden toe seams for less chafing, a spandex arch support and nylon reinforcement on the heel and toe for better durability.