 The skin is abundant and loose, particularly on the head where it hangs in heavy wrinkles.The preferred coat colours are black, grey and leaden, but mahogany, fawn, fulvous, hazelnut, dove-grey and isabelline are also acceptable; all coats may be brindled, and minor white markings on the toes and chest are tolerated.Like most giant breeds, the Neapolitan Mastiff has a relatively short life expectancy.