Designed for the most extreme conditions. Extremely reliable and resistant, the A4M backpack from the Expedition-Light line will take you to the highest peaks.

Stronger, lighter and simply cooler, A4M 40L is made from 100% Dyneema® Composite fabric and is 100% waterproof.

It is 10% lighter and 30% stronger than comparably heavier high-end nylon fabrics. This makes this backpack the ideal companion for mountaineering and expeditions.

The roll-up closure and waterproof main compartment with taped seams offer maximum protection against the elements. Two daisy chains on the package provide attachment points for the gear.

A waterproof zippered back pocket provides quick access to a top internal pocket and an external waterproof zippered pocket is arranged in the top flap. They offer a comfortable space for objects and equipment. The large removable waist belt makes the A4M comfortable to carry even under heavier loads.