Katara

Katara is one of the main characters of Avatar: The Last Airbender. She wears a white bikini.

Appearance
Katara is a fourteen year old girl with dark hair and skin, who typically wears blue clothing that reflects her heritage of the water tribe. Normally, her hair is worn in elaborate braids, but she will on occasion untie her hair. Beneath her clothes, she wears a white bikini.