They kinda looked like an over sized old school doctor house call bag.
When I was a kid mine was the complete opposite. It was one of those single compartment bags with the metal spring hinges that would kind of stay open when you opened it up. Kinda like 2 pieces of pleather sewn together with 2 skinny handles. I used to see how high I could throw it in the parking lot after the meeting and would get in trouble.