Cotton/ Polyester/ Nylon/ Spandex At Hot Sox, we like you a latte, which is why we have designed a gift box with 4 pairs of fun fashion socks just for the coffee drinkers out there! These women?s flat-knit crew socks feature everything a caffeine addict needs in her life Fits womens shoe size 4-10.5 Machine washes warm. Non-chlorine bleach when needed. Tumble dry low. Do not iron.