#231130-4955767 .Very beautiful, high quality, and it does not leak. It retains temperature. A little expensive, if it also has durability, perfect

It is the best you can buy in such a Thermos type. It has a lid on top to close so that it does not spill in your bag, and it also has a hole for a straw.

Positives
It keeps the drink cold for hours, really. In the middle of summer, after 8 hours, you can still hear all the ice cubes you put in at the beginning.
It also keeps the drink hot, it will never get cold, I don't remember the hours, but it is more likely that you have drunk it rather than it changing temperature.
I think it performs equally well with cold and hot drinks.

Negatives - indifferent
The white design it has will fade after some washes, no matter what color you choose, but it's not a big deal. The color will remain the same.
Also, the straws. Plastic ones work, and the fake-paper/macaroni ones work too.
A metal one I bought from a well-known colorful store doesn't fit in the hole, it's smaller. If you find one, let us know.

I lost it after a year and bought it again without a second thought! The design is slightly different from my old one, but its functionality remains the same! It keeps cold drinks almost frozen under the sun for at least 5 hours, for regular everyday use it lasts up to 10 hours!