BLACKHAWK hydrastorm s.T.R.I.K.E. Cyclone hydration pack is a 100 ounce hydration pack that has rapidly become a favorite with BLACKHAWK customers! the BLACKHAWK hydrastorm Cyclone water pack is versatile and rugged, with a drink system that's protected by Microban technology. The water backpack features a Bite valve and quick disconnect system for ease of access and loading/unloading. Twin compartments give you extra storage, and the large main compartment of the BLACKHAWK hydrastorm Cyclone pack has an internal pouch for radio packs and features 3 antenna ports with flaps. This BLACKHAWK hydration pack features over 100 external s.T.R.I.K.E. Webbing attachment points. Anodized D-rings and quick cinch buckles for compatibility with 3-D accessory pouches. Ivs molded back panel superior for comfort, stability, and Airflow. The BLACKHAWK strike Cyclone pack can be carried in comfort thanks to the reinforced waist belt and the contoured, padded shoulder straps and sternum strap.