Domestic Medium Hair is a coat description, not a breed. It covers mixed-ancestry cats with fur between short and long: fluffier than a domestic shorthair, often with a plumed tail, tufts between the toes and a soft undercoat, but without a heavy ruff. They come in every color and pattern, from tabby and tuxedo to calico and solid black.
Because ancestry is mixed, size, personality and health vary from cat to cat. Most are medium-sized, sturdy and long-lived, typically 6 to 14 pounds and 12 to 18 years. In Melbourne's humid climate, that coat sheds year-round and can mat without brushing a few times a week, so keep a comb handy. Meeting the cat is the best guide to temperament.