1. Splashproof for life, triple shockproof and dropproof, thin and light design 2. Large-capacity design, can hold chargers, wallets, water bottles, laptops, etc. 3. Anti-shock and anti-scratch, multi-layer storage 4. Built-in more than 100 anti-shock air cushions, shock-resistant and scratch-resistant, elastic 5. Delivery shoulder strap, can be worn on one shoulder or crossbody 6. Magnetic compartments, zippered large main compartment 7. All-round protection of the computer, the left and right corners and the middle of the bottom of the computer bag have EVA sponge design 9. Firmly punch dates, hand-carried with multiple lines for punching dates, beautiful and durable 10. Anti-splash and anti-dirty, just wipe it with clean water 11. Anti-scratch, wear-resistant and non-pilling, durable 12. Ergonomic hand-held, textured leather material, round, firm and flexible, comfortable to carry for a long time without tiring 13. Easy to open and close without effort, smooth zipper 14. Trolley belt design, easy to travel 15. Opening method: zipper 16. Processing method: soft surface 17. Inner material: polyester + pearl cushion + shockproof air cushion 18. External material: splash-proof and wear-resistant oxford cloth 19. Capacity: the medium size can be loaded into a computer within 13.3-14 inches, and the large size can be loaded into a computer within 15.6 inches 20. Power storage bag size: 16.5 x 9.5 x 5cm 21. Size: medium: 35 x 26 x 6cm, large: 38 x 28 x 7cm 22. Note: the product only includes the bag, no other items