Fitting Backpacks
Harness Systems
EYS Harness - Express Yoke System
 The
Express Yoke System has an adjustable sliding yoke connecting
both shoulder straps, for ease and speed of adjustment. The
central sliding yoke is padded, covered in a breathable mesh,
includes an airflow channel for increased ventilation and is
positioned when the backpack is worn for the first time. The
Internal Staves are not parallel as in the SYS Harness System,
but tapered to the base of the backpack ensuring maximum load
transference to muscles on the lower back either side of the
Sacrum or the base of the spine. This tapered design also
provides for narrower shoulders when adjusted to the smaller
Torso Length. This harness is currently available on the White
Mountain Euro Travel and Alpine series of backpacks.
Features
Haul Loop, Dual Tapered Internal Aluminium Staves, Sliding
Shoulder Harness Yoke, Dual Density Foam Padded Shoulder Straps
and Hip Belt, an Airflow channel on the Sliding Yoke, Breathable
Mesh on a Padded Yoke, Padded Hip Belt and Padded Lumbar
Cushion, a Sliding Sternum Strap, Shoulder Strap D-Rings, Upper
and Lower Stabilizer Straps, Dual Adjustable Waist Buckle and
Keepers on the Hip Belt.
Torso Length
The EYS Harness System allows for an effective adjustment
range of 4 cm below and 8 cm above the medium Torso Length.
Special Feature
Adjust the Sliding Yoke and Torso Length while the backpack
is on the individual wearing the backpack.
How do you fit the EYS Sliding Yoke Harness System?
-
Remove, contour, and install the two Internal Staves.
These two Internal Staves are easily located at the top of
the backpack, behind two press-stud tabs.
-
Loosen the two Sliding Yoke Adjustment Straps attached to
a ladder buckle on the backpack, below and either side of
the Sliding Yoke.
-
Pull the Sliding Yoke to the upper most position on the
backpack.
-
Pull on the Upper Load Stabilizer Straps located at the
top of the Internal Staves to form a gentle arc in the
Shoulder Straps and feed the excess of webbing through the
Shoulder Strap D-Rings.
-
NOTE: Pulling the Upper Load Stabilizer Straps to
this point enables the individual to put the backpack on
without it pulling away from the back.
-
Put the backpack on the individual and have them pull the
two Shoulder Straps simultaneously down and towards the
backpack. This will gently draw the backpack into position
with the Internal Staves following the contour of the
individual’s back.
-
he exit point of the Upper Load Stabilizer Straps should
come to rest below the Clavicle in front of the shoulder.
-
Proceed to position the Hip Belt by pulling down and then
up on one of the two Sliding Yoke Adjustment Straps while
the individual is wearing the backpack. This will then force
the Sliding Yoke down the frame and bring the top of the Hip
Belt up into the correct position level or just below the
top of the hipbone or Iliac Crest.
-
NOTE: To avoid any discomfort to the individual we
would suggest placing one hand on the shoulder while
performing this adjustment, this will also prevent the Upper
Load Stabilizer Straps moving out of place.
-
If you are right-handed yourself perform this operation
on the left side of the individual, or if you are
left-handed perform this procedure on the right side of the
individual.
-
The backpack fitting is complete when you have backpack
position correctly with the Internal Staves following the
contour of the back, the pull position of the Upper Load
Stabilizer Straps below the Clavicle and the Hip Belt in the
correct position level or just below the top of the hipbone
or Iliac Crest.
-
White Mountain™ do provide sliding buckles on the
Shoulder Straps for a finite adjustment in the placement of
the Upper Load Stabilizer Strap pull position, but it is our
opinion that these in the majority need not be used and can
stay positioned hard against the Shoulder Strap D-Ring.
These sliding buckles can, however, be moved up to 25 mm in
either direction to optimise the position of pull from the
shoulder.
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