When this water bottle is filled with water, it looks no different from an ordinary water bottle, but it is made of silicone material. The soft texture of this material allows the entire water bottle to be folded. It can save precious space in your backpack when traveling. In summer, it can be filled with ice cubes to give you a frozen drink; in winter, it can be filled with hot water to become a warm hot water bag. And its sealing performance is very good, you can put dry food in it for convenient storage when traveling. Also, it is waterproof, so you can put important items inside when it rains.
