Call it a trademark, call it a comfort zone: In honor of Mercedes-Benz Fashion Week, we present five designers who are dedicated to a self-imposed uniform.

Carolina Herrera has been creating refined ready-to-wear and red-carpet showstoppers since 1980, the year she was also inducted into the International Best Dressed List’s Hall of Fame. Needless to say, the Venezuela-born designer knows what works for her, and at 74 isn’t straying from her staples—a timeless combination for a true classicist: the white button-down shirt with a crisp collar and a black skirt, whether loosely ruffled or A-line. For a personal touch, Herrera adds a shot of red via pumps or belt, tops it off with a sprinkling of jewelry, et voilà: straightforward glamour that will never go out of style.