Not sure it has even been used - sinotron 22L packable backpack ★【PREMIUM & DURABLE & SUPER VALUE】: Sinotron lightweight hiking backpack is made of high-quality and water-resistant nylon waterproof fabric. Solid metal zippers are smooth and uneasy to get damaged. Mesh shoulder straps are adjustable and breathable. As an affordable hiking backpack, we provide better quality than other expensive ones. ★【22L CAPACITY & CONVENIENT DESIGN】: The main pocket is large enough to accomodate a lot of stuff, such as large gadgets, several books, 14-inch laptop, etc. Two pockets on the side can place your water bottle or umbrella. Another large net compartment is on the outside surface so that you can get some items quickly. There are also smaller compartments inside where you can store your small items. ★【PERFECT SIZE DAY PACK】: Recommendd by a lot customers for its perfect size and convenience. It takes little space when folded so it won't bother you much during journey. A convenient backpack for travelling, day trips, family vacation, hiking, camping and shopping. A perfect companion for hikers. ★【LIGHTWEIGHT & PACKABLE】: The packable backpack weighs only 0.7 pounds and can be easily folded into a small one for storage. The folded size is only 7.5 * 5.5 inch, which is not bigger than a book and takes very small space. Note: Not Suitable for people who are under 12 years old.