Felt Color Of HG Division Cufftitles

[Kriegrelic]

I know that Hermann Goring division cufftitles were manufactured using both blue and black felt backing. My question is what was the criteria for members wearing either colored background cufftitles? Was black felt worn by actual tankmen and blue worn by all others in the division? Thanks in advance!

[Gene]

Black ones were to be worn by Panzer crewmen but they also had blue one applied. Basically, blue was worn by all HG members.