-
True, it could be a couple of inches taller. Can always compress it with a bungee strap. I'll definitely put a larger zipper slide cover - didn't extend it enough on this proto.
I've been thinking about foam but haven't found the right stuff and don't know what to search for. Something low density but stiff, 3-5mm would be ideal. Could maybe bodge it with some pieces of coroplast between the outer and liner but foam would be way nicer and easier to install.
I'll make this one compact, just 12" long, same as the rack top. Will tweak the end shapes though based on this tester. Should be enough to stuff a light jacket and some food. For overnight trips I've got that weird shaped black bag in the pics above.