Lund 601016 Soft Pack Roof Bag Bag size is 39" x 32" x 18" Attaches to factory or aftermarket roof racks with quick attach web straps and requires no drilling for a quick and easy installation Made of water repellent nylon and polyester with full length 2-way zippers allowing for easy access to cargo Fold neatly away for storage when not in use Lightweight; large capacity design stores up to 13 cubic feet for added cargo space