It is a composite helmet.
The company Schuberth still manufactures Combat 826 helmets, see: https://www.schuberth.com/en/products/military/combat-826.html
This helmet is painted in a sand color also known as tan.
The webite Dutchhelmets.nl gives a little additional information about this color.
I don't know if this helmet was actually used by Afghanistan, Battle Group-4.
Composiet Gevechtshelm (m95) in gebruik bij de Nederlandse Krijgsmacht | Combat Helmet, Composite (m95) in use by the Netherlands Armed Forces
Dutchhelmets.nl is lid en houder van het Keurmerk Online-Musea.nl.
via : dutchhelmets.nl
Afghanistan, Battle Group-4 helmet?




I obtained the helmet missing the sweatband:

I was able to buy a brand new sweat band from https://militaria4you.com/paginas/artikel-details.php?id=3705


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