Just follow up on what I have desided to do. I purchased this from REI. [url:307td568]http://www.showerspass.com/veleau-1[/url:307td568] It holds 42oz of drink and has space for tools and I hope a tube.
I will also carry bottle in the cage and an extra baggy or two of mix in the pocket and have some at the drops if needed.
any thoughts?