Just came across this today and since its kinda outdoor related I thought I'd post it.

Cliff notes version. Some sigg water bottles were lined with a coating that contained BPA and if you have one you can trade your old one in for a new one. You pay shipping and probably wont get the same design.

http://green.yahoo.com/blog/the_conscio ... ottle.html

http://mysigg.com/bulletin/exchange_program.html

http://mysigg.com/liner/

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2005
Frankenlifted W/ stock Upper A-Arms
Detours Backbone W/Yellow Top Just missing the winch
Moabs W/ 245/75/16 DuraTracs
Mopar Skids and Riddler Rear diff. Cover

Interesting. Never heard of Sigg? Mine are all Nalgene.

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2004 TJ Rubicon.

I have a couple of Sigg water bottles, and 3 Sigg fuel bottles.
They are good bottles, and beat the Nalgenes (I have at least 6 of those) all to bits. The 'unbreakable' Nalgene Lexan bottles will break, I discovered, if you fall off a cliff and land on them.
I don't know if I buy into the BPA scare or not... the data seems to be from a questionable study, so I'll just keep trudging along.

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07 Liberty Sport, 245x70r16 Goodyear Silent Armor
02 Wrangler Sahara, 31x10.5r15 Goodyear Silent Armor, ARB Bumper, Patriot Rear Bumper w/tire swing