Technically speaking, anything below the chin is considered long hair. If you're older and worried that the look isn't age appropriate, DiMauro says not to sweat it. "There's a ton of older guys with long hair, like Christian Bale. In my head, he's the one who manages to pull it off really well." To make long hair look more sophisticated, ask your barber to layer it around your chin and shoulders for a choppy cut like Bale's.