Rabat
A vest or shirtfront worn by clergy. It is usually black, and often worn over a white shirt with long sleeves. The clerical collar is attached to the rabat.
Glossary definitions provided courtesy of Church Publishing Incorporated, New York, NY,(All Rights reserved) from “An Episcopal Dictionary of the Church, A User Friendly Reference for Episcopalians,” Don S. Armentrout and Robert Boak Slocum, editors.