Backpack "Urban Traveler"

Large backpack with padded and ventilated back protection. The straps are padded and 2 small straps allow you to attach various objects. An opening in the straps also allows small objects to be slipped in. A strap is used to attach the bag to the telescopic handle of a trolley case.
Outside, a USB plug linked to a USB cable inside the bag will allow you to connect your equipment from the outside. This can be very convenient for charging your smartphone while using it, for example to listen to music.
Bekind, against the back, a small secret pocket to protect your wallet from pickpockets.
The main compartment is large and equipped with a pocket for a 17'' computer closed by a velcro.
3 zipped pockets, one on top, easily accessible, for example for a smartphone.
The bag can either be opened simply by unzipping the top, or unfolded completely, and making it completely flat. This complete opening is possible by detaching the stop point along the waterproof zip.