BLACKHAWK! Barracuda 100oz Hydration Pack Veiled by a protective flap and pocket that are covered with our patented S.T.R.I.K.E. webbing system Low-profile design is perfect for short missions Includes 100 oz. BLACKHAWK! Hydration System protected by Microban antimicrobial treatment Bite Me bite valve and patent-pending quick-disconnect system IVS molded back panel for comfort, stability, and airflow