I live in Hawaii and take water with me everywhere. Problem is it always gets so warm I can’t drink it after an hour or two.Bought a glass insulated bottle that I thought would be a good alternative to the plastic bottles, and found out it got just as warm as the plastic bottles did. So I decided to give “The Coldest Water Bottle” a try.Amazing, after a day sitting in the car – the water was ice cold. I put ice cubes in it in the morning and still had ice in the late afternoon!The bottle fits in my car cup holder and is very light weight – especially compared to the glass water bottles.I would recommend this product! Review by Mikietoo on January 31, 2016