Insulated bladders that don't leak?

A trick a friend showed me with your existing insulated Camelbak. Take the lid off & rub some chapstick around the entire rubber ring. Put the lid back on & squeeze to make sure there are no leaks. If there are, add more chapstick. Works GREAT! I would have thrown mine out years ago if not for that- instead, I've been using the same one for 6 years now & it still works great. An aside, I tried the BCA system- great idea- but found the lid easily pops off of a Nalgene despite how tightly it's screwed on (perhaps I just have a bad one).

MSR dromlite ftw!

I've had good luck with platypus bags; they have a lifetime warranty (I've had them replace two of the bags) but they don't have a wide mouth. I've had a couple of the Nalgene "cantenes" which have a standard wide mouth, and you can put a drinking hose on them. I did manage to pop one of those, but it was hanging off my harness while climbing an offwidth in joshua tree. : I won't do that again. But, they will warranty them if they wear out as well.