3M Speedglas G5-01 Directives D'utilisation page 38

c. To reinstall the ridged neck cover, first line up to the two small inserts at the center of the neck cover. Next, align the 4 clips along the
underside of the neck cover and slide the rigid plastic neck cover into place. Four audible "clicks" are heard. The neck cover is now properly
installed (Fig. 30b and 30c).
d. The fabric or leather neck cover has an extra set of retention clips at the far outer edge. To install the fabric or leather neck cover, line up to
the two small inserts at the center of the neck cover as in Fig. 30b. Then click into place the 4 latches as in Fig. 30c and the extra outer clips
(Fig. 30d).
Fig. 30b
Fig. 30c
Fig. 30d
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