I don't know how you usually use the straw as some mention, I never managed to. At my peak, half of it fell and broke along with the cover.!

I have bought 2 so far, one for me and one as a gift. I always considered thermal ones generally unnecessary, but AlpinPro changed my mind. The hours stated on the packaging for warm and cold actually hold true. It is worth every penny!

Very good construction! I have only tried it in the cold, it kept water cool until the next day.

Very good product and Greek. No leaks at all, the straw is convenient. The only downside is that mine is sensitive to impacts even from small ones. It fell onto the desk from a few centimeters away and made a dent in the base, resulting in it not standing well and wobbling.

The best thing I have ever bought in my life! I used to use a glass or plastic bottles, but now only this. I use it at home and it keeps the water cold for many hours. Now I am thinking of getting the smaller one so I can take it to the gym because this one is a bit too big to carry with me.

The only thing that bothers me is when I close it (the transparent plastic you see in the photo closes and "locks" with the black plastic) and when I want to open it again, I have to apply some force to open the transparent plastic and I'm afraid it will break. Besides that, it is excellent and worth its money.