The Ascensionist 55L from Patagonia is made for those who don't compromise in alpine terrain. Whether challenging multi-day tours or high alpine routes with bivouacs - this backpack offers you a cleverly designed carrying system, reduced weight and maximum resilience for long days on the mountain. The outer material is made from recycled fabric with a robust PU coating, making the backpack abrasion-resistant, weather-resistant and designed for daily use on the rock. The features are also impressive. The large main compartment with drawstring is easy to use even when wearing gloves. The aluminum frame, hip belt and padding can be removed if required, allowing you to flexibly adapt the carrying system of the mountaineering backpack. This allows you to switch from a fully featuring touring backpack to a minimalist fast-and-light version. The large lid pocket remains accessible even when fully loaded and offers space for a map, headlamp or bar. An ice axe, crampons or helmet can be attached to the outside via numerous loops. The two adjustable holders for ice tools are removable and can be repaired in an emergency. The side compression straps allow you to transport your skis with this technical rucksack or reduce the pack size. A sturdy metal hook under the lid holds ropes or cross-attached equipment securely in place.