U.S. Merino Wool: Merino wool is soft, cool in the summer and warm in winter. Care Instructions: Wash Me Less - To maintain the durability of your Farm to Feet socks, machine wash in cold water and line dry or tumble dry with no heat. Light Cushion: Cushion that is light in weight along the base of the foot only. This all-season construction is highly versatile. 1/4 Crew: Just above the ankle. Seamless Toe Closure: Advanced knitting techniques create a totally flat connection in the toe box, reducing bulk and eliminating blister-generating friction. Durability Assured: Reinforced construction and low-stress seam placement reduce wear and tear, increasing the life of the sock. The Greensboro 1/4 Crew offers precise fit, support, and performance for all kinds of athletic pursuits in a rainbow of color choices. The quarter-crew cut of this running, biking, and workout-ready sock helps diminish friction at the Achilles' tendon, while its low-profile cushioning absorbs impacts without affecting shoe volume.