This hydration/gear pack provides 830 cubic inches of storage space and now designed with BlackHawk patented S.T.R.I.K.E. system for modular attachment of BlackHawk accessories. It also has an additional compartment for optional 2nd reservoir. The shoulder harness is fully padded and includes sternum strap, waist belt, YKK zippers with sure-grip, and silent pulls. It also features an IVS molded back panel for superior comfort, stability, and airflow. Holds 100 oz./3 liters of liquid. Available in Black, OD, Woodland Camo, and Desert Camo.