Rear mount hydration system mounts to standard 7mm saddle rails and sits flush to rear of saddle. Featuring an innovative elliptical arch clamp for tilt adjustability. Carries 1 or 2 water bottle. - Patent pending arch clamp provides 14 degrees of adjustment - Material: Precision machined and stamped 6061-T6 aluminum - Cage Material: Injected Nylon/Glass Fiber (Vise Cage) - Capacity: 1 or 2 cage compatible - Cage: Vise - Weight: 200G - Includes 2 lightweight Profile Design Vise Cages