MaxxHaul Heavy Duty Water Resistant Truck Bag is made from non-breathable PVC material with polyester reinforcement and UV coating.   Seams along the edges are heat-fusion sealed to protect content of bag from outside elements - Features nylon reinforced webbing loop in all 4 corners to provided secure attachment of bag to your pickup truck using the adjustable bungee cords (included) - Zipper is covered with hook and loop flaps for improved water protection. Zippers come with large holes allowing use of padlocks for extra security. - Built-in handle on side make it easy to pull bag when unloading - Bag easily collapses and fold for easy storage and transport when not in use - Bag will hold up to 26 cubic feet of space and has an overall dimensions of 50" long x 40" wide x 22" height