Nico is said to have shaggy, messy black hair, olive skin (Although it has paled over time) and dark brown eyes. After his time in the maze, he is described as having a pale complexion. He usually wears dark clothing including black ripped jeans and is also mentioned on several occasions to be wearing an aviator's jacket. By the end of "The Battle of the Labyrinth", he also wears a skull ring, a gift from his deceased sister Bianca.