Border Collies have a double coat, with a soft undercoat for insulation and a protective outer layer. This is the case for both medium- to long-haired and short varieties, as their coat structure protects water, wind, and debris while regulating their temperature. Because of their double coat, Border Collies shed year-round and will have “blowing coat” seasons. They require regular brushing and grooming to maintain their coat, prevent matting, and manage their shedding. Lillian Ruff formulates a de-shedding dog shampoo for Border Collies and other double-coated breeds.