The Explorer Ⅰ - MR9907 by Mark Ryden is a rugged laptop backpack with a multi-layer design. It features a USB charging port, water-repellent 600D Oxford fabric, polyester lining and an anti-theft pocket. The YKK zippers ensure durability and smooth operation. Feature Specification Dimensions 46cm x 31cm x (24-32)cm Weight 1.65kg Color Options Expandable Classic Black/Expandable Graphite Gray Material 600D Oxford Fabric with synthetic leather coating, Polyester lining Capacity and Organizational Features Main compartment: 4 open pockets, 1 wet/dry separation bag, 2 pen pockets; 1 large utility pocket; 1 data layer; 1 iPad layer; 1 side pocket; 1 front pocket; 1 anti-theft back pocket Access & Storage Large utility pocket opens 180 degrees for easy access; Multi-layered storage Suitability for Travel Fits 5-7 days of summer/autumn clothes Trolley Sleeve & Straps Back trolley sleeve, shoulder strap with bus card slot and balance chest buckle, for easy carrying External USB Interface Integrated 3rd generation USB charging port (non-removable) Zipper Durable, smooth YKK zippers