[Use safe silica gel] The water bottle is BPA-free and has no peculiar smell. It is made from food-grade organic silica gel, ensuring safe drinking. Free from PVC, latex, phthalates, and plastic odors, it is safe and hygienic. Constructed with a food-grade liquid silicone body and a food-grade plastic bottle cap, it is suitable for children. [Leakproof and easy to clean] The patented sealing screw cap prevents leaks and splashing, effectively avoiding accidental opening. The wide mouth design allows easy cleaning of the collapsible soft water container and makes it simple to add ice or lemon. For first-time use, it is recommended to soak the bottle in boiling water for 10 minutes for thorough cleaning. [Cold and heat resistance] This product offers excellent heat resistance, withstanding temperatures from -50°C to 200°C. It is leak-proof and shock-resistant, making it ideal for all activities and sports. Even when squeezed or pressed, it remains securely sealed. It will not leak when placed in a backpack or computer bag. Do not use with liquids above 158°F (70°C) to avoid烫伤. [Lightweight and convenient] The 20 oz (600 mL) portable silicone bottle is foldable. Designed to take advantage of the flexibility of silica gel, it can be compactly folded after use, making it easy to carry. Ideal for staying hydrated anytime, anywhere. Suitable for sports, fitness, travel, and daily use.