Flandre has red eyes and short blond hair, which is tied into a single ponytail on her left side. She wears a red dress and vest, with a white shirt underneath and socks, also wearing a white mob cap with a red ribbon attached. She carries the mythical weapon Lævateinn. Arranged from her back to the tip of her wings her 8 crystals which are presented in seven colours: light blue, blue, purple, pink, orange, yellow, light green and finally light blue again.