Wavy Zippers: Swayback? Bad sewing? What’s wrong!?
Since I started sewing this summer, I haven’t quite gotten an invisible zipper right. They keep turning out wavy, bubbling and puckering the garment, never laying flat. With back zippers, I think the problem might be that I have swayback, and hadn’t thought to do swayback alterations, but my side zips are turning out mighty strange as well. Maybe I need to interface them, and maybe it’s something else. I put up pictures to illustrate what I mean, and an article begging for help on my blog mollytov.com