The Rook 50 is an innovatively designed, balancing a streamlined profile with tons of features for high-comfort hiking and travel. The AirSpeed ventilated backpanel uses suspended mesh over a large airflow cavity, providing room for heat to escape. It works in tandem with the supportive hipbelt for optimum comfort and load-bearing. You will benefit from large capacity storage, with bespoke compartments for sleeping bags, hydration and other essentials. ·       Airspeed ventilated trampoline mesh backpanel - fully adjustable and suspended for excellent airflow·       Compatible with Osprey Daylite daypacks - can be attached for extra storage.·       Lightweight peripheral frame·       Adjustable torso length - using ladder lock system·       Detachable raincover·       Sleeping bag storage compartment - with internal divider·       PowerMesh dual access bottle pockets·       2 x zip hipbelt pockets·       Internal hydration sleeve·       Sternum strap with emergency whistle·       Multiple zip access points·       Capacity: 50 litres·       Max Dimensions: 74cm (L) x 42cm (W) x 35 (D)Weight: 1.59kg