Domestic Medium Hair is a coat description rather than a breed. It covers mixed-ancestry house cats whose coats fall between short and long, usually with a fuller tail, tufts between the toes and a soft undercoat, but no heavy ruff. They come in every color and pattern, and most are medium-sized and sturdy.
Because their ancestry is mixed, personality, size and energy vary from cat to cat, so the best guide is meeting the cat and seeing how it handles touch, noise and new spaces. In Morgantown, where winters are long and cold, the thicker coat suits a mostly indoor life well. Plan on brushing a few times a week, and more often in spring and fall when the undercoat sheds.