A pencil-thin mustache. One skinny line ... “In the 1930s and 1940s there was a style for this sort of mustache.” Errol Flynn, Ronald Colman, William Powell and David Niven all wore versions ...

There are eponymous styles such as the Fu Manchu, named after Sax Rohmer’s fictional villain. This moustache grows long and thin, extending downward past the chin. The Dali is a whimsical ...

Harry Styles embraces the thin moustache trend at the Valentino Pavillon des Folies Show during Paris Fashion Week in September Credit: Getty As a brand with such history, do they have any tips ...