Developed for comfortable long days hiking in varying climates the osprey kestrel backpack features the renowned airscape ventilated back system which helps generate airflow through the foam ridge panels also suitable in wet climates the integrated rain cover provides 100 waterproof coverage in case of sudden down pours the pack can be adjusted to suit the users torso size by adjusting the length of the back system whilst the sternum and strap and hipbelt help stabilise the load on the fly