Fit should not be compromised for any other considerations. Body shape and sizing varies from person to person. Not everyone will fit every pack. Adjustable packs allow you to fine-tune the fit for optimal carry performance.

To find your torso length, have a friend measure your back along the spine from the level of your iliac crest (the top of your hipbones) to your C7 vertebra (touch your chin to your chest and feel the large protruding bone at the base of your neck).