Health and Safety Material The collapsible water bottle is made of foodgrade silicone bottle body and pp bottle cap materials Our materials have passed the US Food Safety Certification FDA free of BPA and other harmful substances Safety for a wide range of temperatures 104F to 392F In order to avoid burning we recommend you dont use the bottle for liquid temperatures higher than 140F LeakProof and EasytoClean The collapsible water bottle has a silicone sealing ring to prevent water from splashing out The bottle mouth is detachable the wide neck detachable design makes the bottle easy to clean Put ice and lemon in it and the narrow mouth prevents leakage and wetting when drinking water Lightweight and Easy to Carry In Foldable design the volume of the water bottle is reduced by 50 after folding leaving only 488 inches height which can be adjusted according to your needs Comes with a carabiner for easy portability or attaching to a backpack perfect for schools workouts offices gyms and outdoor recreations Durable and Reusable This silicone water bottle can be used reusable it is also antivibration and explosionproof you dont have to worry about it will be broken or scratched Shatterproof silicone body ensures you stay hydrated during your travels or activities for long time A perfect gift for your littles on vacation and holiday Best ExperienceAt Makersland Please turn the round plastic cap on the top of the bottle to open and close the mouth of the bottle and dont press harder We hope you would have the best experience possible If there is something wrong with our collapsible water bottles welcome to contact us