Muk Luks women's socks are becoming quite the fashion statement and the ideal accessory for your favorite boots. The Muk Luks Knee High Sock Packs are made up of 3 different pair of fashionably patterned socks. This product should be machine washed on gentle cycle, no bleach, and laid flat to dry. Available in one size fits most. Made in China. Material: 80% polyester microfiber, 17% nylon, 3% spandex.