Fitting Backpacks
Upper Load Stabiliser Straps
Positioning
It is critical that the exit point, or pull position of the Upper Load
Stabilizer Straps from the Shoulder Straps to the top of the backpack be
correctly positioned. The optimum exit position of the Upper Load Stabilizer
Straps from the shoulder is below the clavicle, 25 mm to 40 mm lower than
the top of the shoulder as demonstrated in the above diagram. This ensures
the pressure or pull of the backpack is placed equally on the shoulders
and the chest. White Mountain provide a sliding buckle on the Upper Load
Stabilizer Strap above the Shoulder Strap D-Ring for finite positioning,
but in our opinion, it is better to use a backpack of the correct size and
set the Torso Length accurately rather than using this adjustment. This
sliding buckle can, however, be moved as much as 25 mm to optimise the position
of pull from the Shoulder Straps and the shoulder.
After setting the Torso Length as measured and positioning the exit point
of the Upper Load Stabilizer Straps correctly, you should find the Hip Belt
positioned correctly across or just below the Iliac Crest or hipbone. If
this is not the case, you will need to adjust the Ladder Harness, Sliding
Yoke Harness, or Independent Sliding Harness to increase or decrease the
Torso Length, to achieve correct positioning of the exit point of the Upper
Load Stabilizer Straps. If the pull position of the Upper load Stabilizer
Straps is high on the shoulder, you will need to increase the Torso Length
adjustment. Conversely, if the Upper Load Stabilizer Straps are low on the
shoulder, you will need to decrease the Torso Length adjustment.
With a little patience, you can easily position the two Upper Load Stabilizer
Straps as illustrated in this diagram.
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