Foldable bottle with 0.5 liter capacity, BPA free . When empty, it will not take up unnecessary space in your backpack. The bottle is very light - ideal for camping. Made of silicone intended for contact with water and food. The mouthpiece from the bottle is closed, which prevents the contents from spilling out. The bottle does not preserve the flavor or smell of the previous drink . You can easily wash it in the dishwasher.