Ladies of EMS, what are we wearing to job interviews?

I have an interview next week for a rural 911 district (finally!!), and I'm struggling to figure out what to wear. I see a lot of posts here by men who recommend the classic jeans + polo combo, or a nice button up shirt and some slacks. But not much about what good interview attire for women would be.

For my daycare interviews I wore a casual dress and some dressier sneakers. I guess I'm worried that this would give the impression that I'm too... soft(?) for the job, but that might be silly.

Anyway, what did you wear? Or if you're an employer, what would give you a good first impression?