Typically a molossoid breed. Powerful bones, rectangular and compact structure, but harmonious and well proportioned. Displays, together with a massive body, a great amount of concentrated agility which is easily perceived. Bitches must show a well defined feminity which clearly distinguishes them from males.

Short, smooth, dense and close to the body.

Any solid colours are permitted except the disqualifying ones. Brindles with a solid coat and more or less dark stripes.

A black mask may or may not be present. In all permitted colours white marks are allowed on the feet, chest and tip of tail. White markings on other parts of the coat are considered a fault.