Syncro 5When you want to carry hydration on your back and not much else the Syncro 5 is your answer. It's everything you've come to expect in an Osprey pack, plus an AirSpeed 3D tensioned backpanel that provides ultimate ventilation. Take the Syncro along on your next ride in the Arizona desert or humid Pacific Northwest and you'll understand. Comfort and stability are key with shoulder straps curved in the same position as your natural riding position and