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, ...

It’s vital that you keep yourself hydrated on a run but carrying a water bottle can be an annoyance. Hydration packs are an obvious choice for runners who want to carry water hands-free on a run and ...

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 ...