Originally Posted by
surge
I also ride on trails and that covers the bottle in dirt (riding on the road also does, but not as much) The taste of water mixed with dirt and road grip isn't too appealing.
I appreciate the tutorial on drinking from a bottle

, but I'm sure there are others out there looking for the same thing and maybe even someone who has found an option, even if it is the SmarTube.
thanks.
http://www.nashbar.com/profile.cfm?c...and=&sku=11801
Zephal makes several bike water bottles with flip-up dust caps. I use one for dusty dirt road rides.