This could be because I bought the bottle in Kathmandu about 6 months ago and haven’t exactly been very good at cleaning it but I’ve found that the liner is chipping away around the threading of the lid. I didnt particularly care about that but this morning while drinking from it, i found a large piece of brown liner in my mouth. Looking into the bottle, I could see the clear aluminium patch from which it had come.
Now Sigg maintains that the liner is baked on and that it’s impossible for it to come off. Now this may be true given that Kathmandu is full of fake Sigg bottles but the one I bought had all of the Sigg material with it (all the printed stuff) and looks identical to all of the other Sigg bottles I’ve seen in Australia (ie cap has Sigg stamp, bottle has Sigg wording in the bottom).
So it’s either the fake producers have become adept at making exact duplicates or the Sigg liner is not quite what Sigg claims it to be. Anyway, I did a bit of research online and found that Klean Kanteen makes a stainless steel bottle which may well be worth looking at to see how much heavier it is – it doesnt have a liner and I like stainless steel anyway.