For me, it must have been 20 years ago in 2005. I got Kingston’s 512MB flash drive for a Christmas present and oh my how great it felt to hold so much of memory in my pocket. After that it was clear to me that there is no use for floppies to me anymore.
As seen in this video teardown, the medium inside the rigid plastic case is quite floppy. This is similar to standard 3.5" floppy disks, but the Zip case is a bit more bulky.