I think a lot of the polyester wicking fabrics are mostly made of recycled plastic bottles, right?
Anyway, Soma makes some bottles that don't leach chemicals, if you're interested
http://www.glorycycles.com/socrpowabo.html Just seal 'em really tight or your gatorade will leak out all over your bottom bracket.
And to throw in a couple more cents, I use one of
these for grocery shopping and other stuff. It's pretty much indestructible (i've put in about 70 pounds of stuff in it before) and when it gets dirty you can just hose it down.
And if you wanna get really depressed, check out these articles about how all the plastic crap we throw away ends up in the oceans and chokes all kinds of sea life to death.
http://www.latimes.com/news/local/oc...699,full.story
(This article is a little less depressing)
http://www.csmonitor.com/2007/0620/p01s03-woeu.htm