1. Material: oxford cloth + polyester
2. Waterproof design, no fear of outdoor bad weather
3. Thickened handles, comfortable and durable
4. Two-way zipper, open and close smoothly without jamming
5. Expandable backpack design, can meet the needs of work commuting and business trips
6. Thickened computer compartment for better protection of electronic products
7. External charging port, the cell phone can continue to go out of the house
8. Cubic honeycomb back cushion promotes the free flow of air, keeps your back dry and reduces the pressure on your back
9. Chest buckle life-saving whistle, if trapped in the wild emergency can blow the whistle for help
10. Self-locking adjustable buckle, according to the need to adjust the length, so that traveling more comfortable
11. Size: about 46 x 30cm; width about 17-30cm
12. Weight: about 1.4kg
Note: delivery only bag, does not include other items