Vintage sequined tank top

I’m good condition other than flaws with the beading of the top of the back part of the top Other than that all beads are in tact! Definitely vintage and has no tags S/m Personally Im a size medium and it fits well it just sticks to my body more than it would on a size s. It would hang more on a size small. Would fit either size though depending on how you want it to look! Feel free to offer!