A mixed breed cat is a cat of no particular breed, usually a domestic shorthair, medium-hair or longhair whose ancestry is mixed or unknown. They make up most of the cats in American homes and shelters, and they come in every coat length, color and pattern. Names like tabby, tuxedo and calico describe a coat, not a breed.
Size, energy and personality vary widely. Most weigh between 6 and 14 pounds, are sturdy and adaptable, and live 12 to 18 years with good care. A cat's age and observed behavior say far more than its looks, so match energy, sociability and grooming needs to your household. In Austin's heat, a longhaired cat may need regular brushing to keep mats down, while a short coat needs very little.