VACUUM INSULATED COPPER COATED INNER TREK Water Bottle|Sports Bottle|Yoga Bottle|Outdoor|PortableLeak Proof|ReusableWater Bottle GREEN, 850ML, BT850GRN101

Perfect for cold water..and airtight

Like the built and insulation features... I use it for hot water and it stays hot during for long time..

It’s been a month and i have seen a rusted inside bottom and makes the bottle unsafe for drinking or storing water.

Good bottle for daily use

Product not keeping warm even 1 hour

The bottle started rusting after 2 months of usage near the top exposed steel area. Totally disappointed, didn't expected this from Borosil

They should be trusted you

جودة عالية و لون مميز و تحفظ البرودة

It is a very good product

I am using this bottle form last summer but not keeping Water Hot even for 1 or 2 hours

I recently purchased two of these and have carried these on a trek in subzero temperatures with the flask being kept in the outer mesh of my rucksack. It retained the hot water content inside easily for more than 5-6 hours. I've been also using the flask as my daily hot-water-bottle while working, and the hot water in it easily stays hot for 5-6 hours. Difficult to test it for a longer period of time because one usually ends up drinking all the water by that time :) Is extremely rugged as had the bottle fall out of my sack a few times. It did get a few dents and scratches, but so would anything if it hit a hard piece of rock. The bottle is decently heavy and feels well built. The strap and the plastic ring to which it is attached is also pretty strong and did not have any loose stitching threads come off the strap. It was easily able to take the weight of the bottle whenever it was hung on the sack while walking. The bottle cap makes a very tight seal and there was no leaking. There has been no smell coming from the bottle till now. Even though the bottle cap is made of plastic, the way the bottle threads are designed , there is almost 0 contact with any plastic elements. If there is a negative, it is that the outside of the bottle, being made of metal, becomes very cold or very hot (depending on the weather) if kept outside and exposed to the elements. Would be good if a cloth sleeve is provided/bought and put on the flask. This would help in holding the flask in adverse conditions and also act as a layer of protection from any scratches (and also make less noise) in case of a fall on any hard surfaces