This Fjällräven pack uses frame elements made of laminated birch. Their production only makes 10% of the CO2 emissions a set of aluminum elements would. The name "Bergtagen" refers to someone whose soul or heart has been taken by the mountains, and who longs to go back out there time after time. - Back length 46 - 52 cm - Laminated birch frame bars can be detached when needed - Surface fabric made of recycled polyamide (400 denier Bergshell) - Flap and sack structure: simple, light weight and extremely durable without zippers - Detachable flap - Detachable hip belt with zippered pocket and a hanging loop for gear - Attachment points for ice axes and skis - Strong steel hooks in all straps - Compatible with hydration bags