1. Silicone temperature resistance: -50 to 200 degrees Celsius 2. All our materials have passed the US Food Safety Certification (FDA), non-toxic and tasteless.Made of food-grade silicone and BPA-free materials, it can provide safe and healthy use for the whole family 3. Fold the 1/2 size bottle to make it more compact, which can help you save a lot of space The soft silicone material makes it durable and not easily broken 4. Leakproof, no need to worry about liquid overflow when inverted or shaken violently 5. Lockable library to prevent accidentally pressing the open button This water bottle is very suitable for traveling, hiking, camping, cycling, running, daily walks, picnics and other outdoor activities Material ：Food grade silicone Capacity：600ml Package Included: 1*bottle Notes: 1. Please allow 0-1 inch error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from real object.