For miles of comfort and Darn Tough durability on the trail, these merino wool 14 socks feature high density terry loop padding on the foot bottom for an unrivaled level of cushioning performance.. . Made from soft merino wool, nylon, and Lycra spandex in a high density knit for Darn Tough durability and blister free bliss. Merino wool regulates temperature, manages moisture, naturally resists odor, and does not itch. Custom shrink treated merino wool. High density cushioning on foot bottom wont flatten out under pressure. Ribbing above ankle ensures a proper fit. Reinforced heel and toe for abrasion resistance and miles of durability. Elastic support around the arch for precision fit and increased endurance. Ring toe construction for a comfortable invisible seam. Darn Tough socks are made in Vermont. Machine wash warm on gentle cycle inside out tumble dry low.