Domestic Long Hair is a coat description, not a breed. It's the label for a mixed-ancestry cat with longer fur, the fluffy counterpart of the Domestic Short Hair. Colors and patterns run from tabby and calico to solid black and smoke, and some cats resemble a Maine Coon or Persian without sharing that ancestry. Weights usually fall between 8 and 15 pounds, though the fur makes many look larger.
Because no breed standard applies, personality, size and coat texture differ from cat to cat. What they share is fur that needs regular brushing to prevent mats and hairballs, plus the genetic variety that tends to keep mixed cats healthy. In Arlington, that means a brush kept by the couch, a cool indoor home for the long hot season, and a cat chosen by how it acts rather than by its label.