The case is compact.
The external dimensions are (W x H x D) 32 x 24 x 10
The internal dimensions are (W x H x D) 30.5 x 20 x 8 (approx values)
ie an A4 block would fit into the width, but the zipper would not close (but the flap fits even higher).
Personally, I find the compact form just good. The bag is therefore very discreet.
The Structure:
Under the lid is a large compartment with full-zip front and a patch pocket with no zipper. I find ideal. Handkerchiefs, cigarettes etc. are quickly available in the outer pocket. More valuable items are protected by the zipper in front for quick access by thieves.
The large compartment has two straps for cell phones (I have no 5-inch cell phone, but it would fit) and a small zipped pocket for your wallet or house keys (photo to the interior I hyped).
I also like that the bag retains its shape and does not become soggy when times nothing is in the bag there.
The shoulder strap is narrow, but also not overbroad. The bag can be but comfortable to wear. My weight is pretty easy.
Conclusion
Overall a great, compact bag that looks very good and noble. Who needs to carry no greater things or regularly traveling with folders found in his pocket a very practical companion.