Less plastic more taste...
I love Sigg Bottles, I have one for myself and now got this one for my 9 month old. They are light, look great (ours glows in the dark!) and do not leach either chemicals or bad tastes into your drinks.
While I would give 5 stars for any adult size Sigg, only 4 stars for this one because Sigg does not offer a sippy adapter for babies, like some other brands do. It's quite hard for my baby to drink from the top the bottle comes with - but we are still practicing.

Great cup!
My daughter loves her Sigg cup- it has a cute design (she loves the bunny and sheep), and it's easy for her to drink out of. I like the fact that it's not plastic and a healthier choice. The only disadvantage is that it is not spill proof.

I love these bottles! Too bad they do leak
I just got my sigg bottles today, One for my 4 year old daughter and one for my 2 year old. They both seem to love them. Yes they do get cold and yes they do leak. I am planning on getting the grips($[...],) since they are much cheaper then the neoprene pouch($[...] each). As for the leaking, I think Id rather worry about a little leaking from a bottle, then a bottle that doesnt leak and contains millions of tiny germs and other nasty things my lil ones are drinking up.

My Baby Loves It!
I got this bottle to lug around in the diaper bag. It took a couple tries, but my 11 month old figured out how to suck the water out. He still struggles a little to hold it himself, but soon I am sure. Great product - does not leak and BPA free.

Awesome!
The bottle is great. Our son loves it and takes it everywhere. The spout however does leak water when it's open, so if your kids are into making puddles, they'll like it even more.