Isabella has long, black hair with thin blue hi-lights, curtain-like bangs and a round bottom, an oval shaped head with a flat top, and dark blue eyes. Currently, she wears a pink jumper dress with a similar white T-shirt underneath and a purple belt, white socks and pink shoes with white laces. The pink bow in her hair is thought to be her trademark, and she has only been seen without it on a few occasions, but not without it on her head. For swimming, her swimsuit consists of a purple, one-piece bathing suit and a purple bow.