I drink a lot of water while riding my bike. So much that on any ride of considerable distance I run out which is very annoying. Currently I carry 2 0.7L bottles on my bike which obviously isn't enough.

I don't want a camel pack because I don't want to wear something on my back. I've thought of getting a bottle cage that can mount behind my seat but I'm worried that might prevent me from using my seat pouch which carries all my tools.

I think my preferred solution would be to get some new bottles that are at least 1L (1.5L would be awesome). Does anyone know of a company that makes bottles that big? I don't care if I have to buy new cages.

Thanks!