This is from Scott Dunlap’s A Trail Runners Blog.
Product Idea - The Camelbak© Fluid Intake Monitor
Every endurance athlete knows that carefully monitoring your fluid intake can be the difference between a great race and a DNF. So why hasn’t anyone created a fluid monitor that can help you measure and track your hourly intake?
I totally agree with this. I have never used a Camel Back in a race due to the fact I cannot monitor how much I am consuming. So I will stick to the hand helds even though I know I am burning energy carrying the extra weight in my hands. This would probably make me switch.



