Authentic PRADA flats I bought at Sax Fifth store in Long island, NY a few years ago. It says 36 for size, but I think it’s more of 5.5. I wear 6 in sneakers and boots, and 5.5 in heels depending on the brand and this fit me pretty good. No box or original receipt. I didn’t wear them much so they are still in very good shape! Willing to go down if not through here Open to trades