As a boy, Simon is physically underdeveloped for his age, standing at little more than 4-feet tall. He wears a long sleeved blue and red jacket and short brown pants, topped with a pair of yellow and red goggles and brown work shoes. He has indigo hair and wide eyes with small pupils, and his iris color was eventually revealed to be an almost black dark blue. Simon also ties on shin splits and sports a cloth waistband, and the Core Drill hangs from a fastened leather string around his neck. Originally, Simon wore a dusty brown cloak, which eased his passage through the narrow tunnels of the underground, but this cloak was blown off by the wind during the initial escape from Giha Village.
