Appearance
The BRT gives the impression of great strength, athleticism, and courage. It should be rustic (but not coarse) in appearance, and should not look as though its coat is sculpted or trimmed. It should never appear to lack substance or be weak in any way. Males should be noticeably more masculine than females.
Coat
The coat is hard and dense, never soft, woolly, silky, or frizzy. It should be between 1.5 and 4 inches (4-10 cm) in length. It should form a beard and eyebrows on the face, and a slight mane around the withers and neck that is more pronounced in males. The coat is low-shedding and the color is black or black with some gray hairs.
Size
The male stands 25-29 inches (64-74 cm) at the withers compared to the female's 25-28 inches (64-72 cm). The breed weighs 80-143 lbs. (36-65 kg).