I’m reading Tom Wolfe’s Bonfire Of The Vanities, and a minor character (a defendant in a trial) is described thusly:
“He wore a teal-green shirt with an outsized collar and, in place of buttons, a zipper that ran diagonally from his left shoulder to the right side of his waist.”
Is this a real type of shirt that people actually wear (or wore during the 80s?) Tom Wolfe often makes things up in his books that are meant to represent highly exaggerated versions of already existing trendy things (like the “Chrysler Annihilator” SUV in I Am Charlotte Simmons), so that could be the case. I did an image search for “diagonal zipper” and all I found were these dry suits.