On the left is a lightning stitch seam, on the right, a zig-zag. Notice how much smoother and tighter the lightning seam is.
Four ways to sew with knit fabrics, thedreamstress and scrooppatterns.com
Images
On the left is a lightning stitch seam, on the right, a zig-zag. Notice how much smoother and tighter the lightning seam is.