【New, Unused】ANA (All Nippon Airways) Not for Sale Leisure Sheet with Rain Cover

I've forgotten where I obtained this, but it's a brand-new, unused ANA original leisure sheet with a rain cover hood.
I haven't opened the package, so I don't know the design inside. Please refer to the third image for how to use it.
It has been stored at my home.
If you understand these points, please consider purchasing it.