The (RMP 10" X 16.25") works well for backpacks or gym bags that have no internal frame and does well at keeping the main compartment clear of any loose objects by giving the option of attaching molle pouches or lashing your various items to the platform. It also makes for a good grab and go item for your most essential items such as med kits, mags or anything you might need, however preplan what you're going to be using this product for there is only so much room use it wisely; don't forget to use both sides as well it'd be a waste not to. I would recommend this product everyone has the need to use backpack or gym bag often it keeps things organized and tight. Suggestion: Take a look at there aluminum stiffeners or make your own will keep it from flexing even more