Attention, make sure to clean well the part where you screw it in before screwing, otherwise you will have leaks. Also, you remove the internal component from the cap to insert a straw but then you have nowhere to put it...

While the product's specifications state that it can be washed in the dishwasher after a few washes in the dishwasher, the product externally has been damaged.

The main problem with most thermoses is that they are bulky and do not fit in car cup holders. Additionally, their price for the lifespan and materials used is unrealistic. Finally, all of these need to close watertight and not airtight as I see in all the reviews.

So far, I have only used it for hot coffee and it keeps it satisfactorily. I make coffee at 7:30 and it is still at a good temperature around 11+ when I finish it.
It seals very tightly, I put it horizontally in my lunch bag and it doesn't leak. One negative aspect is that it loses heat from the point where it has the gray silicone. So, I avoid putting it near something that I want to remain cold.
The lid stained with the first contact with lipstick, but it cleaned with makeup remover milk.
The lids seem to be made of lower quality plastic compared to the Chilly's one that I have.

Just got it so if it breaks, I will probably update here that it has some major issue. It is very beautiful and all its parts are very easy to clean, the most important advantage that has not been mentioned at all is that it has two lids and the second lid (the one intended for the water bottle) opens in such a way that it is perfect for a metal straw.

One of the best choices someone can have if they want to have a hot or cold drink everywhere.
Very practical and safe, especially in the car, as it secures and also its bottom is designed not to slip.
It keeps the coffee hot for at least 5-6 hours, as well as the water cold enough for at least 8-9 hours.
It is very easy and practical to clean.
Also, currently all its parts are available as spare parts at a reasonable price.
It is quite lightweight and very durable.
Highly recommended.

Excellent thermos, the only thing that requires attention and is stated in the instructions is that thermoses with external paint should not be put in the dishwasher as their coating peels off. This does not apply to the stainless steel colored one.