The retractable water bottle contains silicone sealing ring, put inside the backpack without worrying about leakage. The lid can be removed for easy cleaning and ice storage. | Collapsible silicone water bottle is made of food grade silicone, free of BPA , safe and healthy to use. The temperature ranges from -20℃ to 60℃. camouflage. | This collapsible water bottle for traveling is equipped with mountaineering buckle, which can be easily hung on your backpack. It is a good helper for you to travel, outdoor mountaineering, fitness running. | This foldable water bottle is very lightweight and easy to carry. The lightweight water bottles for travel can hold 500ml of liquid. After folding, it is converted from 24cm (height) to 13.5cm without taking up space.