Anti-theft backpack with USB port and reflective article

• Anti-theft computer backpack for daily, travel & business.
• This backpack has coded lock, USB port, reflective article.
• The capacity of main pocket is big and multilayer storage space, You can separate computer, IPAD, mobile and so on. This bag can be expanded 180 degrees .
• The left shoulder has a card bag& right side can hang glasses. The back of bag has a luggage fixed belt. And the front has night reflective article.
• This backpack making your travel more safe, convenient & fast.