Roof bag cargo carrier,cargo carrier,car roof bag Durable waterproof PVC Tarp. construction keeps belongings dry 15cuft capacit Roof bag cargo carrier,cargo carrier,car roof bagDurable waterproof PVC coated nylon construction keeps belongings dry15cuft capacity, measurement 37 x 37 x 18 inchesMounts to most factory installed racks and aftermarket racksOversize rain flap with velcro protects heavy ...