A spacious rucksack for trek and travel use the deuter aircontact 5010 has a tough abrasion resistant construction and the 3d air mesh offers excellent ventilation on challenging trails the sl version is designed specifically for womenthis deuter rucksack features 50 litres of versatile storage which is easily expanded by a further 10 litres with the height adjustable lid should you require more storagestorage for your adventures is provided by the spacious main compartment a large zipped