1820 ca. Typical Regency Wrap Corset.. Worn over a chemise. Cross-over fabric and lacing at the back. Tied around at the front. via Roger-Viollet Palais Galliera, Musée de la Mode de la Ville de Paris.

Corsets changed at the end of the Regency Era to fit well under clothing,  give maximum support and comfort. Corsets pushed up breasts and showed off the bust line beneath a square-cut and low-cut neckline as in the early 1800s, or Regency years. The Bridgerton ladies, Jane Austen and their female friends would have worn this type of soft wrap corset. https://books2read.com/SuziLoveCorsetBook17.