Offering a blister free, foot hugging fit, Darn Tough's Merino Wool Mesh 14 socks are designed with open mesh knitting on the top of the foot for the discerning roadie, mountain biker, road runner, and trail runner. 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 shrink or itch. Open mesh knitting on the top of the foot enhances breathability densely knit yarns on bottom of foot no cushion. True Seamless: undetectable toe seam in an ultralight sock. Reinforced heel and toe for abrasion resistance and miles of durability. Elastic support around the arch for precision fit and increased endurance. Form fitting toe box and sculpted heel pocket enhance fit. Darn Tough socks are made in Vermont. Machine wash warm inside out, gentle cycle tumble dry low.