Haha. I did spend two summers planting trees in BC, and another year and a half counting trees on the eastern slopes of the Rockies, came away with a bear story or two, but, thankfully, was never involved in any fire-fighting!
I have done a few google searches in the past in the past, but all I ever came up with was some cotton webbing in huge quantities, good widths, but huge lengths, and lots of money.
Someone should get a call out to Torolf, he's got a Textiles background and I'm sure would know much more about it than I would. Heck, I'm a red-neck! i didn't even know you could buy a linen shirt... most of mine are polyester!