Hardy and strong, the Cao fila de Sao Miguel is a Bouvier dog with a body that is slightly longer than tall.
With a pleasant, muscular build, this medium-size dog with a broad chest gives the impression of a dog fit for work, well balanced and very calm.
Between 50 and 60 cm (19.69 to 23.62 inches) for the male
Between 48 and 58 cm (18.90 to 22.83 inches) for the female
Between 25 and 35 kg (55.12 to 77.16 pounds) for the male
Between 20 and 30 kg (44.09 to 66.14 pounds) for the female
His color can vary from fawn to charcoal sand, light to dark grey or yellow in all its shades but whatever the color, the coat is always brindle.
White patches may be noted on the feet as well as on the chest, chin or forehead.
His short coat is dense and smooth and rather rough to the touch.
The large square head of the adult has a well marked stop. His oval, medium-size eyes are dark brown. His medium-sized triangular ears are drooping but not close to the cheeks. His broad nose is black. His slightly curved bushy tail is medium length.
According to the FCI breeds nomenclature, this breed belongs to group 1, section 2 and is #340