Domestic Medium Hair is a coat description, not a breed. It covers mixed-ancestry house cats whose fur falls between short and long: fuller than a shorthair's, often with a plumed tail, tufts between the toes and a soft undercoat, but without a longhair's heavy ruff. They come in every color and pattern, from tabby and tuxedo to calico and solid black. Most adults weigh 6 to 14 pounds and live 12 to 18 years.
Because ancestry is mixed, size, personality and health follow each cat rather than a breed standard, so meeting the cat tells you more than the label does. In Dearborn, where winters are long and most cats live indoors, that fuller coat means weekly brushing to control mats and hairballs, with extra sessions during the spring and fall shed.