Running Gear: Running Backpacks

Many trail runners and marathoners now carry “hydration packs” during training runs. These are essentially running backpacks with some or all of the interior space taken up by a flexible reservoir that the runner accesses via a tube. Small fanny-pack models may hold as little as 28 oz. of water, while bigger running backpack styles can offer 100 oz. capacities or greater. Besides allowing the runner to carry far more water than conventional bottles, many hydration packs have enough cargo space for snacks, a jacket, a hat and other gear.