FreeSpan suspended open-air mesh backpanel keeps you cool and comfortable on the trail. Top loading access with secure drawstring closure. Perforated, breathable shoulder harness with built-in hydration routing and sternum strap with integrated safety whistle. Internal hydration sleeve with SpeedClip hydration hanger compatible with our QuickDry 3D Hydro Reservoir (reservoir not included). Front bungee system with reflective webbing loops Top zippered quick-access pocket. Swing around, side zippered stash pocket for quick storage and key clip attachment. Side stretch mesh pocket. Custom ComfortGrip molded zipper pulls.