Made of food-grade platinum silicone, APPROVED to ensure safe drinking and odorless. Suitable for water or drinks 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.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.