A. This is a 10-liter foldable water bag with an outdoor style, designed specifically to meet the needs of outdoor travel. It is made of PVC plastic, which is safe and durable. B. With its large-capacity design, it has a volume of 10 liters and can hold a sufficient amount of water. Whether you are on a self-driving trip or participating in other outdoor activities, it can provide you with an adequate supply of drinking water. In addition, it is transparent, allowing you to easily observe the remaining water at any time. C. Notably, it is foldable. When not in use, it can be easily stored without taking up too much space, making it convenient to carry and store. Whether placed in the car trunk or backpack, it won't be a burden. D. This foldable water bag is suitable for various outdoor activity scenarios. Whether it's mountain climbing, camping or picnicking, it is a good choice, enabling you to fully enjoy the outdoor fun without worrying about the drinking water problem.