For a long life with me, your new favorite tumbler, you should consider the following things:

* Please only fill me with cold drinks, for hot drinks please use the coffee cups.
* I am very easy to clean. I am not allowed in the dishwasher and insist on hand washing, but this is very easy. Simply wash me inside with lukewarm water with a sponge and a dish washer. You can also simply rinse me off from the outside.
* Easy to use and travel-friendly: I am stackable and space-saving for easy storage, so I am also perfect for a trip!