Way back in Home Ec class when we had to do invisible zippers in a skirt, I wanted to sew my zipper on top, showing everything. I said it would be much easier and who cared it was a zipper, it didn't have to be invisible. The teacher was appalled I would even want to do it that way.Said everyone would think I had the skirt on inside out. She said it was not the proper way, zippers had to be invisible. Now exposed zippers are on everything. I wish she was alive to see it.