Patagonia Ascensionist Pack 30L. In great condition! Ascensionist 30L Backpack Head for the high ground with the Patagonia Ascensionist 30L Daypack. Designed for scrambling, hiking, or climbing on mixed terrain, and sewn from a lightweight but rugged Cordura fabric, it's an excellent all-around climbing accessory. This year's edition touts a few changes that mostly consist of a more minimalist design; although, the asymmetric profile is the biggest improvement to the pack. This construction offers added elbow clearance for unimpeded mobility, making it ideal for climbing and fast-packing.