[Capacity] 550mL [Material] Food grade silicone + hardware HEALTHY & SAFE MATERIAL -- Made of food-grade platinum silicone, APPROVED to ensure safe drinking and odorless. Suitable for water or drinks from -40F (-40C) to 446F (230C). We do not recommend using it for liquid which higher than 140F (60C) to avoid scalding your hand. PERFECT FOR TRAVEL & SPORTS -- 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. Ideal for travel, gym, bikes, running, camping, fishing, hiking, climbing, yoga, beach, outdoor sports. LEAK PROOF & EASY TO CLEAN -- The travel water bottle designed with silicone seal ring to prevent leakage. Wide mouth design makes collapsible water bottles easier to clean the interior or add ice, lemons into it. When first use, we advise to soak it for 20 minutes with boiled water for thorough cleaning. CUSTOMER SUPPORT -- All sports water bottle are thoroughly tested and inspected before delivery. If you are not satisfied with the folding water bottle for any reason, please do not hesitate to contact us for further assistance.