Very good backpack for school or university less suitable for leisure

With its many compartments of this backpack is suitable in my opinion, very good for the school or the university. Unfortunately, it is less well by the many rather small compartments for leisure activities or purchases suitable.

The carrying handle and shoulder straps are padded and well finished.
The back piece is ebendfalls offers cushion for stability.
The seams are kept uniform and very unobtrusive.
There are 4 proper subjects available and a tiny key or something similar for.
First compartment accommodates a 17 inch laptop and papers or books, the height and width are calculated in the backpack and the depth is about 9cm.
Second compartment is so high and wide as the backpack and about 7cm deep.
Third compartment is about 5cm less high than the backpack and 5 cm less wide, the actual depth is about 3 cm (naturally stretchy).
Fourth compartment 2/3 as high as the backpack, approx 10 cm less wide and about 2 cm deep and contains several small compartments and a small plastic chopping.
Each located on both sides of a network for water bottles and on the left shoulder is ebendfals a network.