One-piece Anti-theft Backpack is an ingenious design with a double-layer explosion-proof zipper running through the whole bag, with level 5 cut-proof fabric, TSA code lock, lockable buckles, and RFID shielding technology to create a comprehensive anti-theft security system. It realizes the conversion between three-dimensional contouring to a flat-folding one, aiming to address user’s need for travel items storage, prevention of burglary and easy home storage.