The Valencia Backpack by Sticks and Stones is an ideal city backpack. At 24x25cm it has enough room for what you need without being too big. Zipped internal compartment inside and outside.
The back part of the Valencia Backpack is made of polyester fabric, as is the underside of the adjustable 3cm wide shoulder straps. The use of polyester fabric in the specified areas ensures that the backpack is comfortable to carry and the back part is well ventilated.