Searching on foot and by air, police have still turned up nothing since the suspect hit a bank in Odessa just after 10 Monday morning.
Officials tell us a black woman came into the bank and approached the teller with a note.
The teller complied and gave her the cash.
She then took off on foot, possibly heading southbound on Grandview.
Since then, search teams have scoured the area looking for any clues, and say they did find some pieces of clothing that could help them find this woman.
This is one of several robberies in the last 12 months, and FBI officials say they're not giving up.
"The last, probably 2 and a half or 3 years we have had an increase in bank robberies, but as you probably recall from many stories, we're getting a lot of them resolved. We don't quit on these things, we keep following up on our investigation and get the people who did this," FBI Special Agent Matthew Espenshade said.
Odessa Police, the FBI, and Texas Rangers are all working this case.
Another thing they do know is the suspect was not armed at the time.
Here's another look at the description of the suspect investigators are looking for.
A black woman in her mid-to-late-twenties, about five foot-three.
She's dressed all in black, and carrying a black back-pack with blue trim.