Unicorn fanatic Then you need our Unicorn Kid Socks! Kids love our fun sock styles, and we have just the right design for your little "sock star." All Kid's Socks are a durable blend of 75% cotton, 15% nylon and 10% spandex.a 75% Cotton, 15% Nylon, 10% Spandexa Contrasting Heel & toea Preshrunk