Whether you're conquering the trails on two feet or two wheels, carry your extras and your fluids in the Osprey Syncro 15 Hydration Pack. This streamlined pack's self contained design scores with bikers and hikers who are looking for lightweight, highly ventilated comfort. The AirSpeed back panel helps keep sweat to a minimum, the front panel access make it easy to get at your gear, and the 2. 5L Hydraulics hydration sleeve makes sure you'll stay watered up. Osprey also built in a front tool organizer, helmet carry system, and integrated rain cover to keep you cruising when you need to deal with the unexpected.