Make sure your cold drinks will stay cold. The special 3M insulation keeps your drinks longer at the temperature you want. The special autoclose valve makes it super comfortable to drink and is always automatically closed while not drinking. While you are on top of a mountain in the burning sun, you will always have a cold and refreshing drink with you.
Thermos flask with double wall function and 3M thermal insulation.
Dishwasher safe and BPA-free polypropylene (PP) material
Special AutoClose valve is always open but at the same time closed