UNISEX, One Size Fits All Microfiber Fleece-lined Socks * Non-skid bottom to prevent slipping * Available in 3 different length: ANKLE, CREW, KNEE HIGH * Choose from Black, Dark Coffee, and Charcoal colors * 80% Polyester; 20% Spandex; Machine washable (preferrably in laundry bags), tumble dry low. For better results, hand wash and line dry.