It keeps the water cold or hot for many hours. No comparison to conventional thermoses. Small volume and lightweight.

It may be more expensive compared to other similar ones, but it is the only one that keeps water hot or cold for more than 12 hours

I put boiled water in it to have it for the bottles and after 24 hours that I left it in the kitchen at room temperature, the water inside was still warm enough to make milk. Very good product, worth its money!! Don't get something cheaper for your baby. Its construction is very good and the temperature doesn't transfer to the outer casing, so you can safely hold it even if it has boiling water inside!

It is the 5th chilly's I have purchased. I started with the 500ml one that fits next to the backpack and then moved on to larger ones like this for trips and travels. I also have 2 large 1.8L ones for fishing, camping, etc.

The bottle passed the test during a summer vacation in Crete. I had left it in the car in the sun for over 8 hours in crazy temperatures in the middle of August, and when I got home late at night, I drank from it and it soothed my throat with its coldness.

I remember one morning I put frozen water in it, had it in my beach bag where it was directly hit by the sun for hours, and when I got home late at night, I took a sip and my teeth hurt... it was that cold...

They are a bit expensive but truly incredible for what they do. I highly recommend them!

I have had it in my possession for just one week, and in the 14 hours that I have tested it, the water is as cold as when I put it in from the fridge in the morning, even at the beach. Do not put it in the fridge because of the double wall, it only freezes on the outside. I will come back with more feedback over time.

I have it with me all the time. It keeps the water cold all day. I give it 4 stars because, for what it offers, it could be a little cheaper.

I have had it for over 3 years and I can say that I cannot live without it. By far the best purchase I have made. Amazing quality, without a doubt. Especially in the summer, I enjoy it as I always have cool water. Even if I leave it on the beach and under the sun, the water remains unchanged inside. I have it with me everywhere, it is my characteristic. When the group is looking for water, they know where to turn to. ☺️