Fabric: NylonLining: PolyesterSize: 40 cm*30 cm*11 cmWeight: 0.42 kg Structure: Front bag *2/main bag/side bag *2Purpose: leisure/business trip/game/shopping1. 【Convenient USB Port Design】: Built-in USB port design and embedding a charging cable inside allows you to easily charge mobile phone and other electronic devices by connecting a power bank.      Please note that the lightweight backpack does not include the power bank itself, the USB charging port only provides easy access to charging.2.【Comfortable Material】:   The backpack is made of tear-resistant, eco-friendly nylon and polyester with sturdy metal zippers.     The adjustable shoulder straps feature a comfortable and breathable mesh design that can help you release shoulder stress.3. 【Large capacity】:  This backpack can hold laptop, iPad, books, clothes, phone, umbrella, pens, wallet up to 15.6 inches, etc. It is ideal for office work, campus classes, weekend getaways, business trips and other daily outdoor activities. 4.【Multi-pockets】: The travel backpack has a separate 15.6 inch laptop compartment and an iPad compartment; a spacious packing compartment for daily necessities, tech electronic accessories; front compartment with 2 zipped pockets. and water bottle pockets on the side, all pockets make your items organized and easier to find.5. 【Gift】: This laptop backpack can be a great companion for college, travel, business, daily use. outdoor use and activities.      Practical gifts for friends, mother, father, her or him.