Sewing a patch on a backpack is easy and a fun way to fix or decorate it. Start by placing the patch where you want it. Pin it in place so it doesn't move. Use a needle and strong thread that matches the patch. Begin stitching around the edges using a straight or zigzag stitch. Make sure the stitches are tight and secure. Once done, tie a knot at the end and trim the extra thread. Tha... https://backpacktips.com/how-to-sew-a-patch-on-a-backpack/