Bests & Worsts Reviews from Amazon

I live in AZ and I bought these in several colors. When I received them, they seemed to work great but I wanted to put them to the test. So on the day the temperature was going to be 119 degrees, I took cold water and filled the bottle. I did not add any ice when I filled it. I put it in the car at about 9:00 am and left it in the car all day, some hours having the car parked in a non-air conditioned garage with all the windows closed. At 5:00 pm, we left to run an errand in the car. I took a sip from the bottle, and even though the bottle was extremely hot to the touch, the water inside of the bottle was as cold as it went into the bottle. I actually did a Facebook demonstration and measured the results with a thermometer. If this doesn’t convince you to try this, I don’t know what will. I highly recommend it, and in AZ it’s a Godsend to be able to use this in the car. The bottle also cools off quick when you turn on the air conditioning. My only critique is that I wish the 17 oz size was an 18 oz. size because the lid sits deep in the bottle and when I pour in a bottle of water, there’s an ounce left in the bottle that I can’t pour into this container. Try it, you’ll love it, and it works as well for hot drinks.