The German armed forces had a tradition as to how awards would be securely fastened to the tunic.
Where the award had a pin attachment, what they did was sew tiny loops on to the tunic, where the award was to be worn, then
the pin of the award passed through these loops and (depending on the strength of the stitching!) the award was securely fastened.
Some period photos show some soldiers provided extra security by adding additional stitching at various points on the award
e.g. in the case of an Infantry Assault badge, some thread stitched around the wreath and through the tunic to stop the badge
coming loose, especially if running, etc.
The pin itself never pierced the tunic's fabric, there is a exception to
this: any awards which had a screw-back attachment, required a hole in the fabric for the screw housing to pass through, allowing
the disc to be screwed onto the back. In these cases, the hole was not left raw, but stitched around the opening to prevent
the fabric tearing.
In the case or neck worn awards, the method of fixing depended on the individual wearer. Examples
show some had elastic with hooks attached to the ends of the ribbon, which held it firmly in place. Another example consisted
of sewing a button underneath each collar and then buttoned the ribbon in place.