The Kora "Yak" (10%) Ski Sock ended my long search for a good motorcycle touring sock. Most OTC socks today have little stretch, and fit tight on the calf, cutting circulation. The Kora sock has the right shape, lots of stretch, and a wide band to hold up the top without pressure. The cushion is just where it is needed, leaving good feel and control. The material stays dry and clean, and they can be pulled off without going inside out. The size is woven in to the inside.