[LandCruisers4Life]

The North Face used to have a bag for expeditions called the "Water Duffelo". They stopped selling it because it was expensive enough that nobody bought it. My buddy has two of them. They are waterproof, but at the cost to buy them, nobody went for it.

My big bags of clothes (a-la Doppelduffel) will go inside my Cruiser, and will not get soaked. Other stuff like sleeping bags, blankets, tent etc will go on the roof rack. Sterilite/Rubbermaid containers will hold all that stuff and will keep it dry.