Foldable Travel Backpack Bag - waterproof material, adjustable shoulder straps. The backpack is made of durable waterproof material and plenty of cushioning to wear it comfortably. Adjustable shoulder straps ensure an easy and convenient fit for adults and children. The Backpack can be folded to fit into its own zippered storage pouch when not in use. The Traveling Backpack is perfect for sports enthusiasts, hikers, travelers, and even students. Its extra roomy with dimensions of 19.3 inches high, by 11.4 inches wide, by 3.9 inches deep.