Large Waterproof Laptop Backpack with USB Port, Travel School Business Bag Men and Women Anti-Theft Oxford Backpack for 18 Inch Laptops

This is a business/commuting backpack with multi-partition storage, practicality and portability. It is a business-style computer bag that is just needed by commuters and students. It is a practical commuting backpack with intelligence and storage.

1. Large-capacity layered storage: The main compartment can easily accommodate computers of 15.6 inches and above, with multi-layer compartments, documents, digitalaccessories, books, etc. are stored in categories, and it is efficient and not messy to find things.

2. Convenient USB charging design: The USB port is built into the side. After connecting the power bank, there is no need to look for the charging cable. You can recharge your mobile phone and other devices at any time, and you can keep the power on your commute.

3. Comfortable carrying system: The wide and thick shoulder straps fit the shoulder curve, and the breathable sponge on the back disperses the weight. You will not feel sore on your shoulders and back for a long time, which reduces the burden of travel.

4. Waterproof and wear-resistant fabric: Made of waterproof Oxford cloth, it is splash-proof and wear-resistant. It can deal with rainy days or daily scratches, protect the safety of items in the bag, and extend the service life.

Specification:
Material: Oxford Cloth
Style: Leisure, Business, Fashion
Color: Black
Open Way: Zipper
Size: 12.5x7.8x18.1 in (LxW xH ) 
Internal Structure: 15.6" Laptop Bag, Mobile Phone Bags, Document Bags,ID bag, Pencil Bag

Note: There is no mobile power comes with the backpack inside.
If you want to use External USB Charge Function, you have to do as follows:
1. Buy a mobile power first
2. Connect your mobile power with the USB interface inside the backpack.
3. Connect your phone with the USB interface outside the backpack.
4. Charging begins.
5. Please allow 0.39-1.18 inch differs due to manual measurement.
6. The color may be a little different from that of real item due to the different display and different light.