Convenient, elegant, minimalist backpack. Exceptional materials, thick fabric that inspires confidence and does not tear. It is not waterproof, but it won't get wet with the first drizzle. YKK zipper, equivalent to a large Delsey suitcase. The straps are very well made with a good fit. Quality chest strap with whistle and removable waist strap.

Compartments: one large pocket and a smaller one in the front. Inside the large pocket, there is a mesh pocket with a zipper (for glasses, wallet).

Back: it has a removable foam pad inside. On the outside, it is smooth and will sweat in the summer like all backpacks. Unfortunately, if you don't organize your things well, the back can feel a bit uncomfortable, and it sits somewhat crooked. Other than that, I don't have any other issues.
EDIT 22/05/21: The issue with the back disappeared within a week. It probably needed some time to soften and "settle".

The backpack is lightweight, you don't feel like you're wearing it. It has excellent support - even when loaded, you don't feel it pulling you down on your back. I have had it for 2 months and have enjoyed it a lot.

Warning for those who only choose backpacks based on appearance: it is NOT big. You won't be going on a weekend trip with it. It is 16 liters, which means it can fit a few essentials. You can fit your personal items, a water bottle, a packed lunch for work, and a jacket. That's it. If needed, it can fit A4-sized documents, but you need to organize them well because the backpack narrows towards the bottom.

Use it wisely.