Osprey Packs Raptor 6 Hydration Pack - 366cu in - $108.95

The featherweight Osprey Raptor 6 Hydration Pack offers a three-liter hydration reservoir and high-tech, ventilated support while coming in at a little over a pound (not including reservoir). Versatile enough to take on a hike, bike ride, or trail run, it will carry your tools, snacks, or layers in smart organization while you try to beat your fastest time. This tight, light load wont hold you back. - $108.95