1. Material: polyester
2. Luggage size: medium
3. Capacity: less than 20 liters
4. Internal structure of the bag: mobile phone bag, ID bag, computer pocket
5. Opening method: zipper
6. Function: breathable, waterproof, wear-resistant, shock-resistant, lighten
7. External USB charging interface, can be charged at any time outdoors
8. High elastic breathable shockproof design
9. Level 4 water-repellent fabric
10. Rich compartments, easy to distinguish items
11. Dimensions: 29 cm x 10 cm x 41 cm/21 cm x 6 cm x24 cm
12. Weight: 540g
13. Description of items that can be placed: This backpack has a total of 1 large-capacity bag, 1 external front auxiliary pocket, and 2 side pockets
14. Internal space: 15.6-inch computer compartment, 9.7-inch iPad bag