USB PORT CHARGING - Built-in USB cable. Use it to connect the power bank, then connect your phone with original USB cable to the USB port, you could charge your phone conveniently.
INVISIBLE CARD POCKET - There have a convenient invisible card pocket in the left shoulder strap.You can easily take out the card from the pocket to past the underground subway gate or pay on the bus,no more wasting time to take out the transport card from the wallet.
ANTI THEFT - No Way to pickpockets, theft proof Protect wallet items inside from thief.
REDUCE BURDEN - Stylish model,comfortable sponge strap, back sponge strap can fix the backpack on pull rod of travel rod box which may reduce your burden during travel.Delicate buckle can adjust the length of the strap, it is very different from other backpack that this would break the connection.
Size:11.8"L×5.5"W×17.7"H / 30×14×45 cm (L×W×H) fits for IPAD and 15.6" laptop.