The reduced contact area and the large ventilation channels of the Deuter Airstripes back system, combined with perforated shoulder straps and hip fins (with pockets), ensure maximum air circulation and even weight distribution – providing a secure fit in any terrain. The flat-shaped lid allows for ample head movement even when wearing a helmet. Loops on the shoulder straps keep the carabiners of the via ferrata set within easy reach. Thanks to the large zipper opening at the front and the side pockets, equipment and materials are always easily accessible.