BANGE BG-7690 Mens Business Double-Shoulder Backpack Large Capacity Waterproof Traveling Computer Bag(Black)1. Fabric: leather abrasive 2. With USB port, rechargeable design 3. Multiple pockets with compartments, can be categorized to place items 4. Waterproof design, splash proof, no water penetration 5. Solid buckle, not easy to slip 6. Large capacity design, can hold 15. 6 inch computer 7. Water bottle and umbrella pockets, convenient for daily traveling 8. Partition design, neat categorization, rational use of space 9. Size: 45 x 31 x 17cm 10. Weight: