【Healthy Material】This collapsible water bottles for traveling Made of food-grade platinum silicone, APPROVED to ensure safe drinking and odorless.As a BPA-Free water bottles, we come with a cleaning brush. The clean brush coming with the water bottle is also a great cleaning partner.When using for the first time, we recommend that you soak in boiling water for 20 minutes to thoroughly remove the odor. 【Portable Lightweight】Silicone collapsible water bottles can reserve 500ml liquid, Resuable bottle can be folded 5.7inch in height.The travel water bottle has a foldable design, the foldable design can save 50% of space for outdoor activities. 【Leak Proof】The travel water bottle designed with silicone seal ring to prevent leakage.Durable, unbreakable, leak-proof and drop-proof are the important indicators of a kettle. 【For Travel and sport】It has impact-resistant properties and is very suitable for all sports activities . The shatter-proof, flexible and durable collapsible silicone water bottle equipped with a aluminium alloy carabiner, you can hook it to backpack or gym bag, carry it everywhere. 【Durability】Foldable water bottle has excellent heat resistance and can withstand temperatures from -40°F (-40°C) to 446°F (230°C).We do not recommend using it for liquid which higher than 140°F (60°C) to avoid scalding your hand.If for any reason you are not satisfied with the bottle, please feel free to contact us and we will respond immediately. Collapsible water bottles，BPA Free Travel Silicone Water Bottle with Carabiner， Reusable Foldable Portable Lightweight Sports bottles for Gym Fitness Camping Hiking