Macpac Nikau alpine climbing backpack. Size 3 (large) harness. Capacity probably about 55-60 litres. Dual ice axe attachment points, zipper access to lower compartment. Relatively slim and tall profile good for climbing. Obtained quite a few years ago but has sat in cupboard unused since. Currently located in Illawarra, but can arrange transport to Canberra and Snowy Mountains in due course.