Captain America Helmet Straps - Where To Get?

[NewmanAssembles]

Does anybody know where to buy the webbing straps for Captain America's helmet? I have already searched strapworks.com and other places. I can find plenty of tan/khaki/coyote 3/4-inch straps, but I'm having no luck finding something with the double stripes.
UPDATE: For anyone curious, I reached out to Jodan's Iconic Armory and Props N Studio and learned they custom stitch yards and yards of black stripes.

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[TheNickFox]

Just tape a piece of styrene on your sewing plate at the edge of where you want your webbing to go and you can feed in as many yards as you want, then just flip it 180 to do the other stitch line.