Overall height does not tell you a backpack's correct size. Use the manufacturer's torso-measurement method and test the fit with a realistic load.
Measure for the specific brand
Ask someone to help if the maker's method requires locating points on your back. Compare the result with that model's size range. Different brands and adjustable harnesses can fit differently.
Adjust under load
Follow the fitting sequence for the pack, including hip belt and shoulder straps. Check for pressure, slipping or a load that pulls away from you. Walk and step up rather than judging only in a mirror.
Check reach and movement
Make sure water and essential pockets remain usable. Do not over-tighten straps to compensate for a fundamentally unsuitable size. The packing-balance guide helps separate fitting from organisation. Test both before your Atlas holiday, while you still have time to make changes.
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Atlas Hikes
Editorial team