Domestic Long Hair is a coat description, not a breed. These are mixed-ancestry cats with medium to long fur, found in every color and pattern from tabby and calico to solid black and smoke. Some resemble a Maine Coon or Persian, though they don't share that ancestry. Adults usually weigh 8 to 15 pounds, and the long fur can make them look bigger than they are.
Because there is no breed standard, size, coat texture and personality differ from cat to cat. Most have a coat that needs regular brushing to prevent mats and hairballs, and many live a dozen years or more. In Greenville, where summers are humid, that coat care and a cool place to rest matter. Meeting the cat tells you far more than the label does.