I detest zippers, I can never get them in a garment the right way. I used to sew a lot of clothing but went out of my way to make sure a zipper wasn't called for. It reminds me of a time eons ago that I was making something that had Yikes a zipper, I called my mother long distance & she walked me through it and it came out perfect but for the life of me I could never do it again. Unfortunately I lost my mother a couple years after that & never done a zipper since that was in 1984.