By Jack Bag I finally found exactly this:
+ Good size
+ Very robust processing (right thicker, solid!)
+ More additional subjects than expected (or specified were in the description):
* Depending on a zippered pocket on the back pocket inside and outside;
* A zippered pocket in the jacket;
* A zippered pocket right outside;
* A magnetic closed Bypass tray left outside the front including integrated small open
Insertion compartment;
* Two very large compartments (with velcro) on the front of the bag;
* Two very small (just phone size) Open pockets inside the front side
* Last but not the quick access front compartment.
+ The strap is pleasantly wide
+ Appearance of the pocket also really great
The only (half) Minus:
- By the length of the strap sits this metal bracket, unfortunately, often close to the shoulder and tends to press. Here I would similar to me a kind of pull-on cushion element desired.
All in all, this bag my expectations far exceeded and is recommended by me in any case.
Addendum after one year use:
As but some reviewers criticized poor processing, I like after I have subjected this bag a year real ordeals, complete this Renz Sion again to the current state.
It remains in absolute and totally convinced 5 stars. With all that I as a student rumschleppe with me so, I come regularly for 4-6 kg weight (due folder Collegeblock, pencil case, netbook, 0,5l bottle of water and then what to odds and ends no matter how this comes).
So far not one of the shutter magnet is not a seam ripped, jumped or something. Not even the vulnerable in many pockets lining (which is often pulled by the spirals of College blocks affected) also has the slightest crack. The bag looks honestly like on the first day and could as - sold "Used like new" - if I wanted to give up because, which is definitely not the case.
:)
* Update 3 * years later: I use the bag still. She still looks good and it's even now, after 3 years of regular usage, not torn.
* Update 3 years, 2 months later * Today has been released from one of the small side pockets, the movable part of the zipper. But I think after 3 years of regular usage is an acceptable sign of old age. Otherwise, the case is in fact still completely intact. No seam ripped, nothing has come loose, everything is still in great condition.