TSA-FRIENDLY & MULTIPURPOSE : At checkpoint, it unfolds freely, 90-180 degrees,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 iPad, laptop and all other USB devices conveniently and freely.No specific battery pack is required. 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. Apple finding system bulit-in: easy way to locate your bag.