Features: External USB Charge- External USB with built-in a charging cable,offers you a more convenient way to charge your phone while walking. Superior Material- Made of Oxford cloth and polyester lining, waterproof, wear resistant and durable. Large Capacity- 32x16x46cm. Four zipper pockets and one laptop compartment to meet your daily travel needs. (Fits up to 15.6 inch laptop) Ergonomic Design- Fit your back very well and release your shoulder, protect your shoulders from rheumatic jerks and make you feel comfortable and relaxed Reflective Strip- Night reflective strip design, so you can walk safely at night, and it is not easy to lose your backpack. Widely Usage- Laptop backpack can be used for business, travel, hiking, casual use and suitable for students, men, and women.External USB Charge- External USB with built-in a charging cable,offers you a more convenient way to charge your phone while walking. Superior Material- Made of Oxford cloth and polyester lining, waterproof, wear resistant and durable. Large Capacity- 32x16x46cm. Four zipper pockets and one laptop compartment to meet your daily travel needs. (Fits up to 15.6 inch laptop) Ergonomic Design- Fit your back very well and release your shoulder, protect your shoulders from rheumatic jerks and make you feel comfortable and relaxed Reflective Strip- Night reflective strip design, so you can walk safely at night, and it is not easy to lose your backpack. Widely Usage- Laptop backpack can be used for business, travel, hiking, casual use and suitable for students, men, and women. TIPS: 1.The product is measured by hand, so it will be 1-2cm error, please understanding it. 2.Due to the different disply and light,image color will be a certain color difference with the true color. 3. Any other problems, please contact with us freely. External USB Charge Superior Material- Made of Oxford cloth and polyester lining, waterproof, wear resistant and durable. PERFECT GIFT