I have had the 1-liter thermos for a year now and I just bought the 1.2-liter version. I am very satisfied with its performance. It keeps the water temperature for many hours, even in tough conditions. During the summer, I would fill it with ice-cold water at 7 in the morning and, even though I was in the sun all day due to my job, by late afternoon the water was still like it had just come out of the fridge.

Aside from the excellent thermal insulation, its construction is very good. It has a magnetic lid that closes well and does not leak. I would highly recommend it to anyone, and I would definitely buy it again.

When I bought it, I thought I was spending quite a lot for a water thermos. I have had it for 1.5 years and with relative care, it hasn't suffered any damage. From the first moment you hold it, you realize its quite high-quality construction. As for temperature retention, I have to say that in the summer with 10 ice cubes and at room temperature, you could feel the ice cubes for 72 hours. Yesterday afternoon, I forgot it in the car under the sun... The next morning, it still had ice. I consider it to maintain a good temperature. I haven't tried hot drinks. Overall, I consider it a good choice.