Light gray and red Osprey Dyna 6 hydration pack. Great for trail running or hiking. Hydration bladder NOT included. Bag only. There are some light stains (see pictures) Sells brand new for $130 I lost one of the front straps for the pack but it still works great. Two extra-large stretch mesh soft flask/food harness pockets Four lower stretch mesh food/ supplement harness pockets Vertical zippered harness slash pocket for valuables or phone Hydration sleeve with direct-zip access and hose path for easy loading Hydraulics 1.5L LT run-specific reservoir included Front panel zippered compartment Stretch mesh front pocket for quickly stashing extra gear Snap-in adjustable/removable dual chest straps for customized stability Trekking pole/ice axe attachment Tuckaway safety whistle Two open stretch mesh side panel pockets