Bring along just the bare essentials with you on your next trail run with the Osprey Packs Dyna 6 Hydration Pack. Designed on the idea that less is more, this true vest-pack provides bounce-free stability and utilitarian comfort whether you're pounding the pavement or navigating wooded trails. Rugged nylon construction holds up against close encounters with harsh boulders and snagging branches, while the included Hydraulics 1. 5L reservoir with attached hose and sternum magnet frees up your hands for easy drinking when you're in the middle of an intense hill climb. The zippered main compartment and multiple pockets make sure you bring along your gloves, hat, headlamp, and any energy-boosting snacks you might need during your outing.