ANTI THEFT BACKPACK – This backpack applies antitheft design technology. Zipper of the main pocket is fully hidden in the back of this bag. No thief can open your backpack, which makes this totally theft proof. Moreover it is equipped with secret pockets on both sides of the backpack and shoulder strap, which comes in handy to keep boarding pass, travel tickets, mobile phone, earphone etc. It’s super good for business, camping, outdoor activities, shopping, vacation, travel or school.