The reduced contact surface of the deuter Airstripes back system and airy, quick-drying Air Spacer Mesh against the back combined with perforated shoulder straps and hip fins ensure maximum airflow, even weight distribution, excellent comfort and a snug, secure fit on multi-day via ferrata (fixed-rope) routes. The 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. While equipment and gear are easy to access via a large front zipper opening or in the side pockets. Features Round profile frame made of permanently elastic spring steel Pull-forward hip fins Adjustable sternum belt Comfortable to wear thanks to movable, ergonomically shaped Active Fit shoulder straps with soft-edge finishes Load adjustment strap Compression straps Inside compartment to keep your valuables safe Key clip Compatible with 3.0 liter drinking system/bag Rain Cover Ice Axe Attachment Pole attachment SOS label snug hip fins Elasticated inner compartment for storing wet/sweaty clothing, water reservoir, etc. Attachment loops for the helmet holder (helmet holder is not included in delivery) Stretch front pocket Lid compartment Stretch side pockets Front zip access Made without PFAS 100% recycled PET material