Batman Boys Slipper Socks (Little Kid/Big Kid) 67% Acrylic/25% Nylon/7% Polyester/1% Spandex Imported Hand Wash Cold Sock size: One Size fits most kids age 4 to 10 years High quality novelty slipper socks with no slip soles Non-skid outsole prevents slips Features DC Comics The Justice League superhero: Batman!