The material on the face of a fabric impression, but is waterproof plastic (there are of Forvert also very similar aussehnde fabric backpacks).
The backpack has already accompanied me on many hiking and travel as hand luggage on the plane, as provisions backpack, as a beach bag, a cushion used as a camera backpack for my DSLR, together with various lenses.
It is easy to clean and robust.
The only thing I would like to see even more: a grid spacer as Schwitzschutz at the back, as found in many backpacks.
