Deuter Trail Pro 34 SL rucksack has been developed for alpine multi-day tours that require a perfect transmission of weight while enabling good ventilation and reliable control of the backpack. It all has been made possible by the Deuter Aircontact innovative backsystem. The main feature of the backsystem is its elastic spring-steel frame, which transfers the load evenly and effectively. In addition, the shoulder straps, hip belts with Pull-Forward construction, chest strap and load adjustment straps provide secure and perfectly balanced fit. What´s more, the new backsystem guarantees fantastic ventilation, which has been achieved by using special foam cushions within the Aircontact system. To fulfill its specific challenges, Trail Pro backpack provides fast access to deeper lying gear via large, two-way zipper on front. There is stretch inner compartment for storing wet/sweaty clothing, and special compartment in the inside of the backpack to keep your valuables safe. In addition, the backpack has spacious lid compartment. The flat lid construction allows the head to have enough freedom to move, even with a helmet. The backpack also features versatile elastic front pocket for jackets, helmet etc., a zipped side pocket, an elastic side pocket, and zipped pockets on hip fins. Other characteristics are removeable rain cover, ice axe attachment, walking pole holder, and compression straps. The Trail Pro backpack is compatible with 3.0 litre drinking system. As for Deuter SL type, it has been developed specially for female anatomy. Carrying systems are shorter than men´s and shoulder straps become slimmer towards ends. Hip belt perfectly hug the female anatomy.