Everyday water bottle to carry in my bag.
I love the idea of this bottle, but it lacks a bit in practical usability... when collapsed it feels sturdy, but stretched out it feels flimsy. Mine actually tipped over when empty and the top not screwed on. I don't think the silicon is too thin to hold up, but it is surprisingly squishy and wobbly. I have also had some trouble with leaking. On the other hand my 2 year old nephew loves to play with it! It is very tempting and satisfying to stretch and collapse it!