Dubbed for the home of the United States Marine Corps Special Operations School in Jacksonville, NC, this midweight boot sock is made start-to-finish in the USA with merino wool sourced from American ranchers. Naturally wicking and antimicrobial, the Jacksonville also features top-to-toe cushioning for reliable impact protection. Hidden nylon plaiting construction sandwiches stretch fibers between two layers of wool to create a smooth finish that's both durable and extremely quick-drying.