Just as fashionable as they are functional, these effortlessly essential ski socks are made with super advanced sock technologies, like Indestructawool™ technology for enhanced durability, a Virtually Seamless™ toe for enhanced comfort, and a 4 Degree™ elite fit system for an unmatched performance fit. Smartwool partners with with ZQ Merino to ensure the sheep that produce their wool are treated humanely, the wool growers are treated fairly, and the farms work to minimize their impact on the environment. Made in the USA.