ARC'TERYX BORA PACK Manual Del Usuario página 16

Congratulations! You're done fitting your new pack.
Before your first hiking trip, take your new fitted pack for
a 1-2 hours test hike.
If you find the shape of the back panel doesn't quite fit your
body shape or you notice a pressure point anywhere along
your back, you can bend the stays to improve the fit.
Instructions for bending the stays are available on page 16.
15