The reduced contact surface and large ventilation channels of the deuter Airstripes back system generates optimum air flow, while perforated shoulder straps and hip fins (with pockets) ensure even weight distribution – for a snug, secure fit over any terrain. A flat-format lid allows space for the head to move, even with a helmet on. Loops on the shoulder straps keep via ferrata set carabiners close at hand. And thanks to a large front zipper opening and side pockets, equipment and gear are always easy to access.