With the Jetflow Raptor Hydration System, simply attach your favorite beverage’s bottle directly to the hydration system, and you’re ready to hit the trail. There is no bladder to clean and maintain. And because you’re drinking directly from the beverage bottle, you’ll enjoy clean, fresh contaminate-free water or sports drinks. Comes completely assembled and ready to drop in your day pack or existing hydration pack. Includes a Jetflow 1-Liter Tritan bottle and two adapters to fit 20-oz. bottles and 63mm Nalgene-style bottles. Made in USA.