This waterproof cargo bag has a 135litre capacity, holds up to 20kg, and fits in the Westfalia over cab roof rack.
Can also be mounted on a bike rack to keep all your "stuff" out of the van and dry on the way to and from the beach.
Ideal for wet suits, camping equipment, buckets and spades, or just about anything else you have lying around.
Drybag welded seam technology, waterproof zip (not the cheap Velcro option!) and roll top seal.
Has built in loops for securing straps, and a padded shoulder strap.
Just dont stand on your door window ledge to put it on the roof, your doors weren't designed for that!