Not its certainly not denim, just a good tight weave.

I remember back in the dark ages when I was still fairly young I had unknowingly run out of patch material and was going on a shoot. It was a Sunday and back then you found NOTHING open on a Sunday except a Church! So I started pumping my poor little brain and ran across a solution that was pretty much perfect! An old worn out Ace Bandage! Not the really stretchy stuff like they make today but more like a wrap. That stuff worked fantastic! I think they still make the stuff but it's used more for a bandage covering now and not really stretchy. You guys might give that stuff a look. Could turn out cheaper and work really well. Been years since I was into PRB shooting so I have no clue as to cost and availability of good patch material nowadays. I know back then it was hard to find and we usually used worn out T-Shirts for donor material. The wife would have had a small fit if I'd cut up another T-Shirt to literally burn up for nothing!

Stuff looks like drill cloth. Drill cloth is excellent patch material.

That's what it looked like to me falcon. I bought a yard at a local fabric shop a little while back and it was reasonably priced stuff with a nice tight weave.

BPS

I see Jo-Ann fabrics has drill cloth. Next time I pass by there I may just grab a yard. I have one of those fabric roller cutters that will easily make short work of cutting it into strips.

Bronko, what kind are they? If you can find me a link, I'd greatly appreciate it! Using a knife to cut my patching into strips sucks!

MD you can pick them up at any walmart in the craft/fabric section. the roller comes with a rubberized board. Its no problem cutting through 4 layers of material. Even as thick as that. I cut flannel 4-5 layers thick in one pass. This is the one I got:
http://www.walmart.com/ip/Fiskars-Ro...g-Set/12335930

Just be careful because those buggers are sharp!

Hobby Lobby has it too.

got one today along with a pair of their scissors, wow! one hell of a cutter! I'll be cutting material when I get back home!

Take from my experience - Be Careful. Those cutters make a razor blade seem dull. You slip a little and bump your hand - you're going to bleed.