Originally Posted by Avalanche325
I do the same thing. It stays cool for quite a while. I have been living in hot areas for a long time and sometimes that cold blast is great. The first sip can be warm bscause it is in the tube.
I used a "Genuine" camelback today for the first time, and I was surprised how cool the liquid stayed,(It was put in Chilled) and how little my back sweated. I have heard the complaint before about Warm drinks, but the people that did complain were not using genuine Camelbacks.