Marvel official children Captain America costume by Rubies. Recipient of the Super-Soldier serum, World War II hero Steve Rogers (or Cap to his friends), became one of the world's mightiest heroes and the leader of the Avengers. A decorated costumed champion for all ages, unique uniform has been made to fit even the smallest Hero. This iconic costume features a detailed designed jumpsuit with attached shoe covers and half mask. Dress up as Cap for Super Hero parties, Halloween or just saving the day, every day!