This is an authentic MARC JACOBS Nylon Biker Backpack in Black. This stylish backpack is crafted of nylon in grey. The bag features silver hardware, a leather top grip, lightly padded backpack straps and two exterior zip pockets. The top opens with a zipper to a grey nylon interior. Follow this item for alerts. Marc Jacobs is a registered trademark of Marc Jacobs. FASHIONPHILE is not affiliated with Marc Jacobs.