Health Safe MaterialThis collapsible water bottle is made of food grade silicone, free of BPA and other harmful substances, safe and healthy. Wide temperature range: -50C to 200C. To avoid hot hands, we recommend that you do not use the bottle with liquids that are warmer than 70C. Water bottles are not only stylish, but also environmentally friendly and creative.Easy to Be Carry The retractable water bottle foldable design, the volume of this flexible silicone bottle is reduced by 50% after folding, leaving only13.5cm (height), which can be adjusted according your needs. Comes with an aluminum alloy Safety clasp, makes it is easy to carry or attach to the backpack perfect for gyms, workout, office, and outdoor recreations.7/24 Customer ServiceWe promise that all sports water bottle are thoroughly tested and inspected before delivery. If you are not satisfied with the bottle for any reason, please feel free to contact us, we will reply promptly.Leak-Proof DesignThe folding bottle has a silicone sealing ring to prevent water leakage. You no longer have to worry about liquids pouring into the bag. The mouth of the water bottle is removable, and the wide mouth design makes it easier to add ice cubes, lemons or others. Easy to clean. The flip-top design makes drinking water easier and prevents water from overflowing while drinking.SoftThis silicone water bottle is reusable. The bottle body is made of high-quality silicone, soft and comfortable, shatter-proof and explosion-proof. There is no need to worry about the water bottle breaking suddenly or being smashed on the ground during vigorous exercise. For first use, we recommend soaking in hot water for 20 minutes for thorough cleaning.