deuter Aircontact Lite 40+10 - Unisex\'s Hiking Rucksack For ambitious through hikers who value low weight and high carrying comfort. The functional Aircontact Lite back system boasts a sophisticated design and a perfect balance between carrying comfort, weight, and ventilation. The innovative Aircontact Lite back system provides ideal dissipation of damp air, offering perfect conditions for trekking and alpine climbs. Features: even with heavy loads the hip belt is easy to adjust with its Pull-Forward construction. perfect load transfer to the hip belt through adjustable, flexible, multi-chamber aluminium X-frame double bottom spacious zipper pocket on hip fin for valuables or camera separate bottom compartment additional volume through extendible lid lid pocket lid attachment straps ice axe and trekking pole holders large elastic side pockets volume adjustment by side compression straps; straps can be placed under the side pockets for full compression loops for attaching helmet holder (accessory) SOS label hydration system compatible internal valuable pocket wet laundry compartment adjustable chest strap Aircontact Lite Back System: Stabiliser straps allow optimal positioning of the backpack. These are easily repositioned on the shoulder straps using a “Triglide“ buckle. Breathable padding with special ventilating hollow chamber foam: With every movement, a pump effect circulates air through the breathable Aircontact cushions of this direct body contact system. Extra air channel ventilation between the back cushions is very effective.  The back system can be adjusted to the individual back length quickly and easily for an optimal fit with the convenient length adjustment system. The anatomic profiled X-frame offers a balance of torsional rigidity and flexibility to follow your body movements, and transfers weight through it\'s perfect back fit.  Effective transition of weight through ergonomically cut, compact, ECL hip fins that custom fit the hips. Special pads precisely adjust to the hip and provide stable and comfortable hold of the load. Technical Features: Volume: 50 Litre Material:  210D PA RECYCLED, 600D PES Size (HxWxD): 74 x 30 x 22cm  /  29.2 x 12 x 8.7 in Weight: 1680 g  /  60 oz