I didn't expect it to be so bad. The bag's adaptation to the body is almost non-existent, resulting in the not even 15 kilograms feeling like 30. As if that wasn't enough, the zipper of the front pocket broke on the first use, and the side strap for the backpack came off, leaving a hole where the clip was sewn. The other barely fits a simple backpack that is 1 centimeter thick. I'm not clumsy or careless to say that I broke it with force, it's just that the material is not durable, which I should have realized from the price. Most likely, I will replace it with something more expensive and better.

EDIT 22/9/22: I had bought it for around 35 euros.