Deer Mum Boy's Cartoon Car Pattern Casual Socks(8 Pairs) 60% Cotton,28% Polyester,10% Nylon,2% Spandex Novelty soccer socks,fashionable schook socks Hand or machine washed with neutral detergent,8 pairs packaged as picture shows Size S : 15cm - 19cm ( 5.90''-7.48'' ) ,US 6.5 M - 10.5 M ,UK 5.5 M - 9.5 M ,Euro 22.5 M - 27.5 M ,advise 3-6 years old kids to wear Size M : 19cm - 23cm ( 7.48''-9.06'' ) ,US 10.5 M - 13.5 M ,UK 9.5 M - 12.5 M ,Euro 27.5 M - 31.5 M ,advise 7-12 years old kids to wear Soft fabric,varies ways stole.Any problems,contact Deer Mum freely