Klättermusen - Algir Sack Backpack - Cloud BerryThe Algir sack pack is the Klttermusen take on a classic school gym type bag with an easy to use draw cord closure that also provides was to use straps. But with paradors style straps and aluminium anodised hardware and all the Klttermusen design cues you'd expect to find. The Sack Pack can attach to any Klttermusen packs for additional storage or to be used alone for a fuss free carry.