Bino Harness Water Proofing

[Yomomma]

Does anyone know of a DWR water resistant treatment that can be used on a bino harnesses successfully? Specifically the marsupial harness? I really enjoy my marsupial but hate the way it just sucks up water on the face fabric.

 

[rcb2000]

$12 to test out your idea,, I like Nikwax spray on