1. With a free shoulder strap, the portable shoulder is suitable for multiple scenarios, and it is convenient to go out 2. Large main compartment with zipper, second main compartment with zipper for computer compartment, and inner slip pocket x 2 3. Lining: high elastic air cushion + elastic pearl cotton pad + smooth zipper 4. Back: Can be set on trolley case, detachable shoulder strap buckle + shoulder strap 5. Multi-compartment design for easy access 6. Built-in double pockets, you can put your mouse, mobile phone, power bank and other personal belongings 7. Fully waterproof, lightweight design, convenient travel 8. Built-in anti-shock air cushion compartment to reduce the damage to the computer caused by vibration 9. Comfortable hand-held, firm and elastic hand-held 10. Humanized design, suitcase cover, more convenient to travel 11. Metal zipper, effortless, anti-rust and durable, smooth and easy to pull 12. The sewing thread is reinforced, the workmanship is fine, and the thread is not easy to fall off 13. Can accommodate 15-16 inch computer 14. Opening method: zipper 15. Inner material: smooth polyester + pearl pad 16. External material: waterproof Oxford cloth fabric 17. Function: breathable, waterproof, wear-resistant, anti-theft, shock-resistant 18. Mouse pad size: 60x30x0.2cm 19. Power storage bag size: 16.5x9.5x5cm 20. Computer bag size: 40 x 7 x 30cm 21. Net weight of computer bag: about 350g 22. Note: The product only includes a storage bag, not including other items of the computer