Does anyone know if there is a standard way of measuring back lengths for rucksack sizing? Or do individual rucksack manufacturers all have their own ways of doing things?
Have a look at this page https://ultralightoutdoorgear.co.uk/exos-pro-55-rucksack/
Then click "Size chart" next to Choose a rucksack torso size. There is an explanation there.
Andy
Thank you, that looks very helpful! A very happy New Year to you!
Does back size matter so long as the harness is sufficiently adjustable?
Yes, if you are notably shorter or taller than the rucksack.
