Sherpani Via Strap Tote Bag Backpack Heathered Black One Size Convertible backpack and Tote. Features include RFID protected pocket, main opening locking system, and anti-slash mesh bottom. Material: Durable strong nylon fabric, main opening locking system, RFID protected pocket, anti-slash mesh bottom. Deep main zipper compartment, an exterior zipper pocket, 2 water bottle pockets, 2 interior slip pockets, a laptop sleeve. 11" Tablet Compatible Dimensions:12" x 16" x 5.5," Weight: 13.47 Oz, Capacity: 16 Liter