Unknown cloth cover - anyone has an idea?

[fcmlechma]

Gentlemen,
I got a heritage of a GJ Stabsarzt. In a (norwegian) backpack there was a Cloth cover with elastic band, similar to a helmet cover. It´s well (professionally) made.
It does not fit on a helmet nor on a Visor cap (bit to small) - I tried because that was my first (and only) idea.
Does anybody have a compareble piece or a clue what this could be used for?

Any comment would be highly appreciated,

Thanks in Advance,
brg,
Martin

[Persoons_Karst]

Bike seat cover?

[Gran Sasso]

Had a simular one, with helmet.
Maybee yours fit a smaller helnet?

[fcmlechma]

Hi Gran Sasso!

Thanks for the Reply,
I will check at the Weekend!

brg to Bavaria,
Martin

[fcmlechma]

missing 1/3 of small size helmet