Black Diamond Distance 15 is the perfect backpack for running. Engineered to redefine your line by giving you the ability to blend mountain terrain and activities, the Distance 15 is a hybrid pack that transcends barriers. By combining running-vest technology with the award-winning pack design, the Distance 15 moves with you while you run yet carries alpine gear with purpose-built features, so you have the gear you need when the trail ends, and the climbing begins. The shoulder strap harness system utilizes the Stitch-less Edge Taping Technology—meaning the shoulder strap edge binding is fully edge taped instead of sewn, more like today’s innovative sportswear than a traditional running backpack—which allows for superior comfort, movement, and weight reduction. Also, the harness system is constructed with an adjustable, elastic-cording side compression system, which gives you a more secure ride while running scrambling and climbing. This vest-like system also includes dual flask pockets that fit two BD HydraPak SoftFlask (sold separately) and a De