G4Free 20L Lightweight Packable Backpack Travel Hiking Daypack Foldable Backpack for Men WomenDurable and WaterproofMade of high quality waterproof and tear resistant nylon. With SBS metal zipper, smooth and durable. More than 14 seats have been reinforced by ropes. Reinforced in over 14 places with shutdown processes for added strength. Lightweight & Roomy20L 226g Easily folded into a small bag (sandwich size) You can easily put it in your suitcase, handbag or car, it does not take up space, ultra light and portable. (Note: you don't need to