BlackHawk HydraStorm Tsunami is a perfect combination of cargo capacity and hydration. The Tsunami™ has two large pockets with BlackHawks® patented S.T.R.I.K.E.™ system for modular attachment of BlackHawk® accessories. Features: Drink system protected by Microban® antimicrobial technology. Market proven bite valve and patent pending quick disconnect system. Comfortable, fully adjustable quick-ditch harness. IVS™ molded back panel superior for comfort, stability, and airflow.