【Lightweight Foldable Backpack】The size of our lightweight packable backpack is 12.02 × 5.91 × 18.12 inches; The folding size is 7.48 × 2.16 × 5.12 inches. Only weighs 300 grams. Our ONETOALL packable hiking backpack is an ideal luggage bag for a plane. When it is not used, fold it into a compact bag to put inside your handbag, luggage bag and other backpack. It does not take up space and is very convenient and fashionable. 【High Quality】Our lightweight hiking backpack is made of Nylon material for splash prevention and tear resistance (Note: Don't expose it to heavy rain for a long time). We adopt double-layered & wear-resistant new processes to strengthen the suture of this packable backpack. Two-way SBS-metal zippers and high-quality resin zipper ropes are equipped to avoid zipper jamming. 【30L Large Capacity】There are many compartments in this hiking backpack that you can store the items you need for your daily travel. The main compartment has a reasonable layering to keep your items in order. Also, equipped with two side packets to store your water bottles and umbrellas.