2 duffle bags, a backpack, a bucket, a kit with oil/tire pump/qd, 12 pack of water, 6 pack of bear in said bucket and still had room. in fact I could of fit 3 more 12 packs.
I've done a few short and 1 longer road trip and never had storage issues. will test it out in less than a month with my zdayz + nyc shopping road trip