I recently used a Naz bag, slightly customised, for my recent Rally in Mongolia. A small top bag I wanted for carrying stuff for day access on the front rack of the bike.
I needed some minor changes, they were accepted, and done without any additional charge, Service!.
Overall the product is very well made, and despite the warning that it is not waterproof, (I did have everything inside in a waterproof bag), we endured a 5 hour long deluge and I had very little water egress in the bag, and that was due to it not being closed properly due to it having too much inside. (my fault).
12 days riding through Mongolia, the bag performed very well. Did everything I asked of it, I have also bought the shopping bags, again very well made. When I think of Naz Bags, its Service, Solid reliable products that are well made, and thought out.
