Marc Jacobs Small Studded Navigator Bag in Black. Marc Jacobs Small Studded Navigator Bag in Black. Leather exterior and lining. Buckle accented flap top with magnetic button closure. Detachable adjustable shoulder strap. Interior slit pocket. Studded trim. Measures approx 9 W x 6.5 H x 3 D. MARJ-WY306. M0012666. For the last 30 years, the Marc Jacobs brand has unapologetically pushed and shaped the boundaries of American fashion. This innovation is driven by Marc Jacobs himself, who continues to be an outspoken force to be reckoned with. In his dream world, we are all the stars of our own movie - and his namesake label provides the tools to define individuality and personality.