Are your handknit socks starting to show signs of wear? Before those worn in heels or toes turn into holes, use duplicate stitch (also known as swiss darning) to repair and strengthen weak spots. Our in-house designer and knit-fix guru, Kerin explains different types of darning and when to use which technique. In this video, Kerin goes into detail on how to use duplicate stitch along with a darning egg to prevent those pesky holes!