Cleesmil glass water bottles are made of environment-friendly borosilicate glass, which is more resistant to low and high temperature.(from -10℃ to 110℃).
I love this thing!!! I've had similar products before but they're much larger. This one is the perfect single serving size. I usually use it for tea or ACV mixes that shouldn't be in plastic. This size really takes care of the holes in my bottle collection. Easy to clean, great size, convenient wide mouth for putting and removing fruit or tea bags. It's great.
I AM SHOCKED! I LOVED this little bottle until it broke. Until this morning, I would have given it a five-star rating but it sounded like a gun going off when it broke. When I looked at the bottle, it appears that the neck with the threads on it somehow separated from the base of the bottle. One piece of glass broke off. I'm sure it is a defect because it has never been dropped. I would have reached out to the manufacturer directly but I don't see how so I have no choice but to leave this review in the hope that someone will contact me. I can return the pieces for inspection if you would like but I just want to have my bottle replaced. Please.