Safe Silicone Used---This odorless water bottle is made of BPA-free food-grade organic silicone and has passed LFGB, SGS tests and obtained FDA certification for safe drinking. Free from PVC, latex, phthalates, and plastic odor. It ensures safety and hygiene with its food-grade liquid silicone bottle and food-grade plastic cap, offering peace of mind for children's use. Leak-Proof & Easy-to-Clean---Featuring a patented sealing screw cap to prevent leaks and splashes and secure the bottle from accidental opening. The wide-mouth design facilitates cleaning the inside of the collapsible water container or adding ice or lemon. For the first use, it's recommended to soak in boiling water for 10 minutes for thorough cleaning. Cold and Heat Resistant---This product has superior heat resistance and can withstand temperatures ranging from -50 to 200C. Its leak-proof and impact-resistant properties make it ideal for all activities and sports. It seals tightly even when squeezed or pushed, ensuring no leakage in your backpack or computer bag. We don't recommend using it with liquids hotter than 158F (70C) to prevent scalding hands. Lightweight & Convenient---The 20oz (600mL) portable silicone bottle is foldable. It leverages the flexibility of soft silicone and can be compactly folded after drinking, making it highly portable.Allows you to hydrate your body anytime, anywhere.