The Tuff Truck Bag offers a convenient, lightweight storage solution. The bag offers 26 cubic feet of storage and is much easier to use than permanent truck bed covers or caps, according to the company. The bag is made from waterproof, heavy duty, non-breathable PVC material. All seams are watertight sealed using heat fusion and epoxy. The bag is collapsible for easy storage and comes with an easy storage tote bag.