If additional packing volume is needed on some mountain days, the A.Light Free Backpack can be flexibly extended by 15 L via the extension system. In addition, goggles can be easily stowed without scratching in a fleece-covered goggle compartment and ice axes or poles via a hidden attachment. This allows ambitious tourers to attach significantly more material in and on the backpack. FeaturesExtension system for A.Light Free backpackHidden attachment for poles and ice axeTwo-way zipper