Vintage Vanity Fair Slip Nightgown Slip Dress

This appears to be a slip but I wore as a slip dress—the material is fairly structured, so I didn’t have to wear a bra (And I have a large chest), and it is not see-through or really flowy. Hits about mid thighs on me but straps are adjustable. I was surprised but how comfortable I was wearing this, I felt really cool it just doesn’t fit anymore.