Mary Janes, as they are known in America, are traditionally flat shoes with a cross-foot strap. We'll see Mary Janes in pump form in many a department store in patent and smooth leathers, but the traditional style is flat and plain. You'll be able to maximize your Mary Jane style points by choosing pairs with platform soles or added embellishment, but every girl needs to have one old-fashioned pair to give her feet a break. These shoes might have originally been adopted by the younger set, but there are enough designs out there to match a pair with nearly every style profile.