CONVENIENT STRUCTURE - An invisible card pocket on the shoulder strap, easily taking out the transportation card to pass underground subway gate or pay on bus. The back has a strap which can hold the backpack upright on the luggage's pull rod for easy traveling.An invisible zip pocket on the back to place your iPhone, keys and wallet conveniently. Anti-explosion double zipper of main compartment is anti-slashing and water resistant, this would increase the security of your stuff inside
INVINIBLE WATER BOTTLE POCKET - Made of newest high-tech waterproof material which flexibly fixed bottle or umbrella to prevent wetting out. Backpack's external USB charging port and built-in cable connected with your power bank inside which will charge your phone more easily. (Power bank does not included)
USB & Type-C Charging Port Design - with 2 output port outside and the corresponding cable is also provided, which can be connected to a power bank inside the bag. (Power bank not included).