BlackHawk HydraStorm Torrent Extreme II is a stand-alone or insertable system for any pack, bag, or vest comes with the 100 oz. reservoir. Features: Drink system protected by Microban antimicrobial technology. Market-proven bite valve and patent pending quick-disconnect system. External Fill Cap and anodized D-rings now in matching camo colors. Carry handle. Lowprofile suspension system, if needed as a stand alone hydration system. Shoulder straps are made with durable flat nylon webbing with fully adjustable pull-tabs.