I have multiple dry bags, all with rounded bottoms. It’s awkward and inefficient when using them to hold a 2” document binder.

Does anyone make a soft-sided “flat” dry bag that fits something like a trapper keeper? Map cases will only hold a few pages and anything Pelican names is hard-sided and heavy.

I’m thinking along the lines of a messenger bag sized case. Whatever it is, I need it to be waterproof and light weight. What do you use to secure documents?