These breeds have a double coat&colon; a harsh, wiry topcoat and a soft, warm undercoat. The coat is short and harsh, with a tight topcoat and a soft, dense undercoat. The Skye is double coated with a short, soft undercoat and a hard, straight topcoat. The coat consists of an outer coat and an undercoat. The Scottish Terrier typically has a hard, wiry outer coat with a soft, dense undercoat. The coat consists of a soft, extremely dense undercoat and straight, harsh outer guard hairs. They have a double coat, with wiry exterior fur and a soft undercoat. The dog has a double coat, a coarse upper coat, and a soft undercoat. The coat is long and silky and lacks an undercoat. Its fur consists of a dense undercoat and coarse guard hairs. The Cairn is double-coated, with a soft, dense undercoat and a harsh outer coat. The pelage is brindled, with agouti guard hairs and a short, dense pale undercoat. The coat is short, straight, and coarse with a thick undercoat. German Shepherds have a double coat which is close and dense with a thick undercoat. The coat is short and smooth, with no undercoat.