Flowy Sleeveless Top

I tried looking for a size and material tag but couldn’t find it, couldn’t sworn I got it from Banana Republic. Either way, this fits me nicely, US S. Pit to pit ~17.5”. Material is light and flowy. Perfect for a professional setting with a blazer. Color is dark navy blue with white hem, not black. Perfect condition, no flaw noted. Smoke/pet free home.