Available only from Hammacher Schlemmer, these are the socks woven with copper-infused fibers clinically proven to eliminate 99.9% of bacteria, fungus, and odors. The copper ions are embedded into the yarn and their efficacy will not fade or diminish over time or repeated washings. With added heel and toe cushions, elastic arch support, and moisture wicking properties. Made with 61% cotton/20% polyester/16% copper infused polyester/3% spandex. Machine washable.  Imported. Black or White. Unisex sizes M (men’s shoe 4 1/2-8 1/2, women’s 5 1/2-9 1/2), L (men’s 8 1/2-12, women’s 9 1/2-13), or XL (men’s 12-15, women’s 13+). Includes three pairs.