Review on 40Oz Winterial Insulated Water Bottle - Blue | Double-Walled Thermos For Hot And Cold Drinks | Vacuum-Sealed For Optimal Temperature Retention by Tina Williams

One major PRO with the Winterial is it doesn't sweat. Another pro is it doesn't leak (as long as you screw the cover on tight). One CON is it doesn't fit in auto cup holders and I haven't found a place to set it while I drive if I have passengers. PRO: The size works out great for me as I work a job doing a lot of walking around mostly outside (Florida.hot.drink lots of water) so I don't have to keep refilling it as often. It does keep the water cold for a long time. I had read some reviews that it keeps ice in it for a really long time and that hasn't happened with mine. I fill the water bottle half way with average size freezer ice cubes and within an hour they are melted. The water does stay cold though for many hours. I can't say how long as I am refilling it usually about every three hours or less. I do keep the bottle indoors. I haven't tried leaving it outside yet to see if it will stay cold in the heat. I had purchased a different brand, half the size, about a year ago and that did keep the ice overnight. That brand didn't have a larger size and that is why I went with Winterial.