Rare vintage zippered neck scarff in brilliant green, pink, blue

this is a really funky vintage zippered neck scarf. designed to be put over head then zipped up so it stays in place over a dress or under a jacket, with the double triangle points are layered and perfectly symmetrically down your back. really good vintage condition. haven't found any pulls. feels like a nice polyester, no tags. zipper working . retro, stripes, bright,