The Chartreux is a French breed with a medium build, a dense, woolly blue-gray coat and gold to copper eyes. The body is sturdy and muscular on fairly short legs, and the tapered muzzle gives the face a slight smile. The breed nearly disappeared after World War I and was rebuilt in the 1920s from natural colonies of blue cats, which is why it's still uncommon today.
Chartreux mature slowly, often over three to five years, so a young cat can stay playful longer than you'd expect. The thick coat sheds more heavily in spring and fall, so weekly brushing helps. They gain weight easily, which makes measured meals and daily play with wand toys matter more than a big home. Personality still varies from cat to cat.