Hydration is key to long distance running. And while most organized runs are supported and finding water is not a problem, when training for your half or full marathon - bringing your own water is the only way to do it. Hydration belts, backpacks and clothing are readily available today to supplement your running gear. We have assembled and tested the running hydration systems shown below. We have been very impressed with Geigerrig running hydration packs design that allows you to squirt water out of the bladder instead of having to suck it. As most runners attest - the latter is no fun while running at race pace. Click -> Hydration Systems - to see our full list of hydration solutions.