The reduced contact area of the Deuter Airstripes back system and the airy, quick-drying Air Spacer Mesh on the back, combined with perforated shoulder straps and hip fins, ensure maximum air circulation, even weight distribution, excellent comfort, and a secure fit during multi-day tours. The flat lid allows for head movement, even when wearing a helmet. Loops on the shoulder straps ensure that climbing set carabiners are always within reach. Equipment and accessories are easily accessible through a large front zipper opening or in the side pockets.