includes 6 pairs of socks rib-knit openings arch support zoned cushioning go-dry wicks moisture notched toe seams S/M: shoe sizes 5-8 L/XL: shoe sizes 8-11Machine wash warm, gentle cycle; tumble dry low. spandex 3% polyester 17% cotton 77% other fiber 3% . Best Holiday gift for Women , perfect Socks for Christmas!