I've heard many times the canvas was used. It can be bought at most fabric store. I used it to re do my old home made boots. First. I added foam to the front of the boot to square them off, then later to the soles.I folded over edges of three pieces of canvas and sewed on black piping. I fabric glued six total segments to each boot. I then glued in 6 inch high black elastic. A leather shop added the heavy stitching. They still needs toe spikes.
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