<https://www.digitsandthreads.ca/how-to-mend-socks-part-one-swiss-darning/>
<http://schema.org/description>
"Swiss darning, also called duplicate stitch, is a technique where you trace the path of a row of knitting, covering the existing stitches."
<https://www.digitsandthreads.ca/how-to-mend-socks-part-one-swiss-darning/>