1. Use safe siliconThe water bottle is BPA free and odorless, made of BPA-free food-grade organic silicone, because it uses a food-grade liquid silicone bottle and a food-grade plastic cap,children can also use it with confidence. 2. LEAK-PROOF AND EASY-TO-CLEANsealing screw cap is used to eliminate leakage and splashing and effectively prevent the bottle from accidentally opening. The wide-mouth design makes it easier to clean the inside of the collapsible soft water container or add ice or lemon to it. When using for the first time, it is recommended to soak in boiling water for 10 minutes for thorough cleaning. 3. Cold and heat resistanceThis product has excellent heat resistance . It has leak-proof and impact-resistant properties and is suitable for activities and sports. Even if it is squeezed or pushed, it will be tightly sealed. 4. Lightweight and convenientportable silicone bottle is a foldable type. It takes advantage of the characteristics of soft silicone and can be folded compactly after drinking, making it easy to carry.Allows you to hydrate your body at any time and any where.