Hitomezashi sashiko cuts the surface into a tiling that can always be colored with exactly two colors so that the two colors never touch. My first round of stitches are large, so I filled in half of the space with tiny cross stitches in navy blue. This highlights the two-coloring of the tiling. (Yes, there’s a mistake in the geometry, but it’s working perfectly as a patch.) The fabric for the patch is a vintage piece of woven silk, from a collection of a seller’s samples, and I used the pattern woven into the silk as the grid for my stitches. This is now a patch on a pair of old bluejeans to give them new life. #mathart #visiblemending #sewing