Need help with Gefechtshelm Kopfband

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Hello, folks!
I bought two German "Gefechtshelm B826" recently and still waiting for the delivery.
Before I receive my helmets (which would take a few weeks, I presume), I would like to ask for assistance, Is it possible for anyone to send me some pictures of a stretched sweatband/ Kopfband, dissembled from the liner? I will be very grateful. This is because I want to search for a possible replacement since my helmets are heavily used or show storage traces (They're not brand new).
Plus, I think there are some necessary cleaning jobs. Any ideas?