My bag has been falling apart for ages, so instead of getting another imitation army bag, I bought a Finnish army gas-mask bag. Unused, with guidance for using safety equipment (in Finnish) and what appears to be filters and a patch. Smells of surplus!

Best of all, my initials are stamped on the flap =)

About 30 years ago I had a British gas mask bag as my school bag and loved it. It's like being in the early 80s again!