1. Material: oxford cloth
2. Capacity: 20 liters or less
3. Function: breathable, waterproof, wear-resistant, anti-theft, anti-vibration, lightening
4. Lining texture: polyester
5. Types of accessories: USB interface
6. Reflective design at night, beautiful and fashionable
7. The USB model comes with USB interface cable (not including power bank)
8. Double zipper design, smooth and durable
9. The junction of the shoulder strap and schoolbag is strong and not easy to break
10. Nylon material for hand-held, stronger bearing capacity
11. Dimensions: 30x14x45 cm
12. Weight: about 460 grams
13. With pen case and anti-theft lock, the USB model also includes a USB cable
