Mario Bro: Red Mushroom Aviator Costume Hat This is a costume hat from the classic game series, Super Mario Brothers! Features the Red Mushroom that will give Mario a power boost! The hat is aviator style that keeps your head and ears warm! The hat is also fully lined. Its a soft fleece that is very conformable to wear! The hat is available as one size fits most. Approx. 24-inches around. Its a great item for fans of the Mario Brother series!