Antibacterial: outside main fabric and linning is integrated Sanitized technology during the manufacturing process,which helps by preventing bacterial growth,eliminating bacterial odors and greatly extend the use time. It is safe for the enviroment and human being. 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. TSA-FRIENDLY: 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. Add-a-bag system convenient your travel. A luggage belt lets you pull your suitcase with one hand for easy travel. 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.