Sizes: One size (fits chest range 82–116cm / 32–46in) Eidson’s original design was intended for mountain bikers, but CamelBak (and everyone else) now produce hydration packs for trail runners, hikers, ...

Which hydration vest is best? Water is essential. When you are engaged in an activity such as running or hiking, where space is at a premium and there is no available source of fresh water to hydrate ...

What • A backpack that holds water and supplies for distance runners and bicyclists. How much • $100. Hydration packs can run $50 to more than $200. Where to buy • REI for the Marathoner; Alpine Shop ...

CamelBak founder Michael Eidson invented the concept of rear-mounted hydration packs (small backpacks containing a water reservoir or bladder, with an over-the-shoulder drinking hose, which prioritize ...