This is the only rucksack we offer that uses a frame.  The light frame that we use means that the 100 litre capacity (use of the compression straps can reduce the size of this rucksack to 75 litres) of the Arktis Bergen is achieved with a remarkably low weight.  Our Bergen has a complex strapping system that takes some getting used to, but the final result is efficient and well organised.  Compartments in the lid, front and the side of the pack permit easy access to essential items, and a well padded belt allows maximum comfort.