Nano Technology for Camelback?

Here is the letter I sent and got back from them re: this:

Liz,

Question regarding the antimicrobial technology in the hydration packs. Is this nano technology?
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Hello,

No this is not Nano Technology.

Thank you for contacting Camelbak.

Liz

Hmmm. . . I really wonder how they make their lining then? From the bit I've read about nano-technology it sounds like this is exactly the situation where nano-technology is used. Wish I could think of an alternative to the camelbak. . .

I did find something that might work as an alternative to the camelbak - a desert water bag. They are made of canvas. From ebay, I learned that they were used back when gas stations were few and far between and folks needed cool water. They were also used during war time. The bags are soaked first in water and then filled up. They have a spout in one of the top corners of the bag. I tried to do a search on the web to find a place that sold them, but I wasn't very successful. You can find some on ebay and you might be able to find some at an army surplus store. To see what they look like you can search "canvas water bag" on ebay. If you went this route you could always devise some way to strap it on your back. Of course, it doesn't have the nifty, long straw like contraption but it might be a start to some alternative to the camelbak.