Size and Build
Neapolitan Mastiffs are imposing dogs with males standing between 66 and 78 cm at the withers and females slightly smaller, ranging from 60 to 73 cm. Weight ranges up to 70 kg for males and 60 kg for females. Their bodies are robust, muscular, and longer than they are tall, with broad chests and powerful shoulders. Their loins are well-rounded and croups muscular, supporting strong and sturdy legs ending in oval-shaped feet with arched toes. Males tend to be larger and more powerful, displaying greater muscle mass compared to females.
Coat and Colours
The Neapolitan Mastiff has a dense, short, and fine coat that is hard to the touch with a natural sheen. Recognised colours include black, blonde, blue, blue brindle, brindle, fawn, grey, grey blue, mahogany, and red. Seasonal shedding occurs predominantly in spring and autumn, requiring increased grooming during these periods.
Distinctive Features
The breed's standout trait is the profuse loose skin and heavy folds around the face and neck, creating a deeply wrinkled expression that is both intimidating and unique. Their large broad skulls with a well-defined stop complement deep square muzzles featuring upper lips forming an inverted "V". Eyes set well forward are slightly rounded with pigmentation matching their nose colour. Their relatively small triangular ears sit high and close to the cheeks. Tail sets high on the topline, thicker at the base, tapering gracefully and held level when moving, enhance their balanced and confident gait.
Gender Differences
Males are notably larger and more muscular than females, typically possessing an even broader skull and more pronounced wrinkles. Temperamentally, females tend to be marginally better with other dogs and may display a slightly calmer disposition, whereas males can be more territorial and assertive, especially around other males.
The breed standard emphasises natural proportions and strength without exaggeration to promote health and mobility. Judges in the show ring favour balanced specimens with clear musculature and well-defined features.