I bought an Ortlieb Office-Bag L from REI last week.
Inside the bag is a rolled piece of plastic about 6 inches wide and 3 feet long with some holes and snaps on it and velcro on the inside at the ends. It looks like it is there to stiffen/protect the bag's contents, but I don't understand how to use it. The snaps on the rolled plastic don't seem to line up right with the bag's internal snaps. And I don't understand why both Velcro strips are 'loops' but there's no Velco 'hooks' anywhere. Are there any Ortlieb Office Bag owners that can help?