These socks will work their magic on your feet, keeping you on the trail longer. Trail Magic Boot Sock Cushion by Darn Tough sits mid-calf for added protection and holds your feet in mid-level cushion. Versatile merino wool naturally regulates temperature for all-season comfort. Cool in summer, warm in winter, moisture wicking and fast drying. And as always, Darn Tough backs up its tough promise with an unconditional lifetime guarantee.