The shell itself is extremely high. Well, it costs twice as the "Tchibo-alternative", but the two can not be compared. A different world, really.
The neoprene is of good quality (no smell), just as the zipper and seams.
The "Anti-Slip" system is ideal to keep the notebook in the envelope and protect the zipper against traces.
In this envelope there is simply nothing to complain. There is no doubt 5 star.