Jeff, I looked at some Siggs at a shop last weekend, and they were definitely not metal inside..there was some sort of film, the "lining". That's good though, because I wouldn't want to reuse something aluminum over and over again. They did seem really light, but I'm not sure that this is important to me, since it's mostly for everyday use that I want one.
Do either of them (particularly the Klean Kanteen) taste "metallic"?
I could just buy one, I suppose, but they're pretty pricey here (about 10 quid each!)
The ones I pity are the ones who never stick out their neck for something they believe, never know the taste of moral struggle, and never have the thrill of victory. - Jonathan Kozol