TSA-FRIENDLY & MULTIPURPOSE: At checkpoint, it unfolds freely, 90-180 degrees, allowing you to navigate quickly through the airport security & keep items tidy,exclusively designed for AIRPLANE TRAVELING.Served as an everyday backpack,school backpack for teen boys/girls,high school student backpack or spacious college backpack for men, professional backpacks for laptop. Occasional international travel, outdoor camping backpack, hiking backpack with a large capacity with usb charging capability. USB Charging Port: Travel Backpack with charging port offering a quick access to charge your phone and other electronic devices like Amazon Kindle devices, iPad, laptop and all other USB devices conveniently and freely.(Portable Battery pack is NOT INCLUDED)No specific battery pack is required. USB charging port is located on the backpack shoulder strap for easy charging. RFID PROTECTION Pocket: RFID protection pocket protects your personal information from being stolen(e.g. credit cards, passports, and driver's license) by a RFID scanner. It can be served as an everyday backpack,spacious college bookbag or high school student backpack, professional backpack for laptop or daily use anywhere you go. For example, a weekend getaway or for occasional traveling purposes.