1. Food Grade Safe: The portable water bottle is made of safe food grade silicone and is LFGB, SGS and FDA approved to ensure safe drinking and is free of PVC, latex and plastic odor. 2. Leakage Proof: Collapsible water bottle features a sealing screw cover that eliminates leaks and spills and prevents the bottle from accidentally opening. Even when squeezed or pressed, it remains sealed. 3. Wide Mouth Design: Collapsible travel water bottle features a wide mouth design that makes it easy to clean the inside of the bottle or add ice or lemon. 4. Heat Resistant: Silicone foldable water bottle is heat resistant and can withstand temperatures from ‑50 to 200 degrees Celsius. Impact resistant, suitable for all activities and sports. 5. Caution: When using the water bottle for the first time, it is recommended to soak it in boiling water for 10 minutes for thorough cleaning. Not recommended for use in liquids above 70°C to avoid burning your hands. 6. Lightweight and Convenient: 20 ounce (600ml) portable silicone foldable water bottle, collapsible type, foldable after drinking, easy to carry. Specification: Item Type: Collapsible Water Bottle Material: Silicone Weight: Approx. 143g/5.0oz Capacity: 600ml packing list: 1 xCollapsible Water Bottle