Specification: Material: Waterproof and wear-resistant high-quality material. Size: 30*13*44cm Weight: 0.58 kg Color: yellow/pink/blue/khaki/black Excellent function 1. Large capacity: There is enough space for school supplies, stationery, travel accessories, mobile phones, iPads, 14-inch laptops and other daily necessities. 2. Security design: Hidden back pockets can store coins, passports, mobile phones, keys, cards, etc. 3. External USB charging port: You can charge your mobile phone anytime and anywhere when you are away from home. 4. Comfort: Breathable and decompression design, good breathability and good shock absorption effect. 5. Adjustable shoulder strap: The length of the shoulder strap can be adjusted as needed. 6. High-quality accessories: waterproof and wear-resistant zipper, never rust. 7. The unique shoulder strap decompression design and massage pad can reduce the pressure on the shoulders and make it easy to carry. Package Contents: 1 *School bag (without power bank)