I decided a few years ago to get more comfortable with zippers and have made several bags with zippers on the tops, pockets and side seams. I am doing better, but I would still like to make a few challenging bags with zippers going around all sides and some garments. I haven't put in a metal zipper in years and would like to try that, but they kind of scare me. Also, I've never tried an invisible zipper and would like to work with those