The ultimate anti-theft backpack. Complete lack of access for pickpockets to the compartments and zippers when you have it on your back. After three years of use, as its materials have worn out, I will buy the same one again.

I bought it purely for professional use. I am a civil engineer and I always carry a laser, a tape measure, a folder with plans, sometimes a 13" laptop, an A4 binder, an agenda, and occasionally money.

Negatives: By the second week, it started to lose its shape a bit, meaning it developed some creases. The outer fabric slips compared to the hard interior, and you can now see the seams are no longer at the corners. Also, if you're in a hurry to take something out quickly, it's not easy. The absence of a pen holder is also noticeable. The internal mesh pockets are not convenient for pens, pencils, erasers, etc.

Positives: It's very comfortable on the back and at first glance looks elegant. It has more than enough space to carry my office with me. Even with the items I described above, the bag is not full. The hidden pockets in various places are very handy for a wallet, money, or credit cards. It has special slots that block the magnetism of cards so no one can steal their code.

In conclusion, they sell design and security, but they have lost out on basic quality elements and I consider it excessively expensive for what it offers. However, I don't know if there is a competitor in this category and at this price.

update 3 years later...
The first impression was 3 stars.
I give it 5 stars now because it has proven to be a real workhorse. It hasn't lost its shape. The only thing that has lost shape is the little front flaps that have twisted a bit and don't sit well.
The biggest negative is the lack of a pen holder...

update 5 and a half years later...
The lining in the outer side pockets tore and the black coating at the bottom peeled off. It lasted 5 full years with daily use at work, in the office, on the construction site. Unfortunately, since I bought it in 2020 for €70, I can't bring myself to pay €110 now because I don't think it's worth it. I bought its little sibling for €65, which is missing some pockets and is clearly smaller in size.

Very convenient backpack for professional use, lightweight, with smart design and plenty of storage space.

I had a replica of this bag style for 20 euros. Well, the authentic one is nothing like it! It's 100 times better, and if you're like me, who carries a backpack every day due to work and have concerns about the safety of its contents, it's definitely worth investing the money and buying it. It's exactly as advertised in every way. I will buy it again if the one I got breaks.