U.S. Merino Wool - Merino wool is soft, cool in the summer and warm in winter. Care Instructions: 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 - High-density cushion targeting critical performance areas throughout the sock. 3/4 Crew - A slightly shortened crew that fits just below the calf but above a hiking boot. 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. Featuring a picturesque ocean scene, the Big Sur is part of our Outdoor Communities Series. This sock is versatile with cushioning throughout the foot bottom for amazing comfort, making it the all-purpose sock for exploring diverse communities in the mountains, the city, and everywhere in between.