BLACKHAWK! S.T.R.I.K.E. Predator Hydration Pack - Black Includes 100 oz. Blackhawk hydration System Drink System protected by microban antimicrobial technology Bite Me bite valve and patent-pending quick-disconnect System Padded, contour-fit shoulder harness with sternum strap Durable YKK zippers with silent sure-grip pulls With 830 cubic inches of internal storage space Includes 100 oz. BLACKHAWK! Hydration System protected by Microban antimicrobial technology Bite Me bite valve and patent-pending quick-disconnect system Additional compartment for a second optional reservoir IVS molded back panel for comfort, stability, and airflow