For the final summit push, weight is the enemy. The Avantgarde Extreme 44L features a modular design that allows you to strip away components to save weight. The floating top lid, the internal aluminum frame, and the padded hip belt can all be removed. This transforms the robust 44L expedition pack into a lightweight, minimalist 850-gram climbing pack. Quick-Access Avalanche Safety Pocket

Is your priority or maximum durability ?

High quality extends to maintenance. The case features on the front, top, and bottom. These are magnetic and can be rinsed in the sink. Unlike foam filters, nylon does not decompose or restrict airflow over time.