[Use safe silicon]The water bottle is BPA-free and odorless, made of BPA-free food-grade organic silicone, passed LFGB, SGS and obtained FDA certification, to ensure safe drinking, no PVC, latex, phthalate and plastic smell, etc. smell. It is safe and hygienic, because it uses a food-grade liquid silicone bottle and a food-grade cap, even children can use it with confidence. [LEAK-FREE AND EASY TO CLEAN]The patented sealing cap is used to eliminate leakage and splashing and effectively prevent the bottle from being accidentally opened. 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. [Cold and heat resistance] This product has excellent heat resistance and can withstand temperatures from -50 to 200C. It has leak and impact resistant properties and is very suitable for all activities and sports. Even if it is squeezed or pushed, it will be tight tight. Even if you put it in a backpack or laptop bag, it will not leak. We do not recommend using it in liquids higher than 70C (158F) to avoid hot hands. [Lightweight and Convenient]The 20oz (600ml) portable silicone bottle is a collapsible type. It takes advantage of the properties of soft silicone and can be folded compactly after drinking, making it easy to carry. Allows you to hydrate your skin anytime, anywhere.