2 hours hot (!) Drinks, after 4 hours, they are still not cold, at room temperature, it keeps the temperature even better. The cup is spill-proof and stable and very easy to clean. What we are also the only small drawback: the lid can do just fine in the dishwasher, the cups should be allowed that. Not because they are not clean but unfortunately because they scratch very quickly. I have two of the cup at home, one I have presented and the recipient is also very happy with it. My two cups (no idea why they call it bottle - perhaps because of something larger capacity) are in any case in continuous use and I will possibly even buy myself a.
They fit perfectly into cup holder who has not, however, need not be afraid that it runs the beverage in the bag, as the lid have a special closing mechanism. I am absolutely delighted and can the "Bottle" anyone put your heart who likes his drink in the corresponding "cooking temperature" drinking and it has to transport / wants.
Cautiously should be only with tea, this is brewed with boiling water it is better to let him to cool down a bit, because you'll have to wait until he has drinking temperature (even with the lid open).