Travel equipment doesn’t have to be expensive and complex. Quechua, the home brand of Decathlon sports and outdoor shop, makes very simple and therefore lightweight and cheap backpacks. The Arpenaz backpacks don’t have side pockets. They consist of just one large main compartment with a additional 2nd compartment. The bags are padded with a small layer of foam on the back and made out of water repelling fabrics. On top is a small loop for hanging your bag on a hook in a public toilet or so. Unfortunately there is no large grip handle on top to pick up your bag easily. The Arpenaz backpack series has a 10, 20, 30 and 40 liter variants and is available in all kind of colors.
For the 10 and 20 liter the 2nd compartment is a front pocket. For the 30 and 40 liter variants the 2nd compartment is located in the cover lid. Al the variants except the 10 liter have mesh pockets on both sides. All backpacks except the 10 liter variant have a minimalistic hip belt. Since the volume of all these backpacks are not that big and there is no option for adjusting the shoulder straps at a different hight you might not using it at all.