The officially licensed Mix & Match Print Knee High Socks contain two pairs to mix and match. These socks feature multiple emblems, like stars, skulls, hearts and butterflies. The socks are knee high and black, with different colors for the designs. Officially Licensed Product. 70% Polyester, 20% Nylon, 10% Spanex. Machine Wash Cold Gentle Cycle. Only Non Chlorine Bleach When Needed. Tumble Dry Low.