The Airstripes back system with a small contact surface and air-permeable, fast-drying Air Spacer Mesh, together with the perforated shoulder straps and hip fins, ensures maximum ventilation, ideal load distribution, more carrying comfort and a compact fit on multi-day tours with via ferrata. Thanks to fixations on the shoulder straps, the carabiners of the via ferrata set are always within reach. In addition, the large zipped main compartment and the elasticated side pockets mean that equipment and materials can be quickly accessed or can be stored in the separate bottom compartment.