I've been working on my loadouts for my EDC and car bags and I had a random thought. Has anybody come across/made something that helps keep your bag in it's designed shape? This probably isn't makeing much sense, so I'll try to elaborate. Picture a bag on display. It could be stuffed with newspaper or some other material that fills out the bag's designed shape. Now picture a bag with no filler. It's a flat shapeless mess. For example, my car bag is a Fieldline Tactical knockoff of a Rush 72. The outer section is full, as are some of the interior pouches in the large main compartment. However, the main compartment is mostly empty. I end up having to crank the straps down to keep it from flopping all over the place, which then makes it a pain to get in and out of the main section. I don't want to stuff it full of gear for no reason as I tend to keep some extra space in my bags so I have room to stuff something if necessary. What I'm picturing in my head, is some sort of reinforcement (plastic?) that would be inserted around the edges of the bag to help it hold it's shape. I could then tighten the straps if needed, but would still be able to get inside the main compartment if necessary. It could also help prevent gear from being crushed or damaged by things in other compartments/pockets. I can't be the only one that's thought about something along these lines?