For runners who prefer to carry their water in-hand, or for adding hydration capacity to the Duro vest-packs. A minimalist yet comfortable design that works on both left and right hands ensures you'll hardly notice you're carrying anything to begin with.

• Included Osprey Hydraulics® 250 ml soft flask Soft flask-stabilizing pouch Ambidextrous-handed fit Small zippered mesh pocket Small stretch mesh shove-it pocket