Large capacity and organized: RFID men travel work backpack owns 20 independent pockets for large storage and organization for small items. 3 spacious main multi compartments with many hidden pockets can accommodate lots of stuffs like supplies, travel accessories, clothes, stationery, cord organizer, side deep Zipper pocket for Easy access essentials, side Elastic net pockets conveniently hold travel gear umbrellas or water bottles Usb port headphones hole: external USB charging port with built-in charging cable is easily to charge your smart phone and other electronics devices on the go (portable power pack required and not included in this travel backpack). headphone jack is convenient for you to listen to favorite music hands while walking Tsa approved and multipurpose: at Check point, unfolds the extra large backpack 90-180 degree making you quickly through the airport security and keep items tidy, exclusive designed for airplane traveling. The big backpack is for