Litten is a quadrupedal, feline Pokémon primarily covered in black fur. It has a short snout with a tiny black nose, red eyes with yellow sclera, and short, pointed ears with light gray insides. There are two red stripes around each of its legs and two horizontal stripes with a vertical stripe between them on its forehead. The lower part of Litten's face is also red, and there is a large tuft of fur on each cheek. A tuft of fur is located at the tip of its long tail. When it arches its back, three pointed tufts of fur with red tips appear along its spine.