What is this type of lingerie?

I looked at the wiki, but I can't seem to identify this. post #567963 shows what I'm talking about - a sort of topless corset thing.

cupless bustier

There's also a breastless_clothing tag that's sometimes used for this.

it looks like a bustier but I dont thinkg Ive ever seen one without the cups

Check amazon, cupless bustier is the correct term.