Use Safe SiliconeThe water bottle is BPA-free, odorless, made of BPA-free food-grade silicone, certified by LFGB, SGS and FDA to ensure safe drinking, free of PVC, latex, phthalic acid Salt and plastic smell etc. Smell It uses food-grade liquid silicone bottle and food-grade plastic cap, and children can also use it with confidence. Leak-proof and easy to cleanThe patented sealing screw cap eliminates leakage and splashing water, effectively preventing the bottle from accidentally opening. The wide mouth design makes it easy to clean the inside of the collapsible soft water container or add ice cubes or lemons. It is recommended to soak in boiling water for 10 minutes when using it for the first time for thorough cleaning. Cold and Heat ResistanceThis product has good heat resistance and can withstand temperatures from -50 to 200 degrees Celsius. It is leak-proof and impact-resistant and suitable for all activities and sports. Seals even when squeezed or pressed. It won't leak even in a backpack or computer bag. We do not recommend using it in liquids above 70C to avoid burning your hands. Lightweight and ConvenientThe 20 oz (600 ml) portable silicone feeding bottle is a collapsible type. Making full use of the characteristics of soft silicone, it can be folded after drinking for easy portability. Allows you to hydrate your body anytime, anywhere.