Torsolette

Torsolette (also known as a basque) is a short corselette, covering the chest to the waist line.
The undergarment is similar to a Victorian-era corset, but with less compression of the ribs. The modern-day Torsolette features lace-up or hook-and-eye fastening, as well as boning or vertical seams for structure and support. It usually, though not always, has brassiere cups, and is distinguished from the bustier by its length. It sometimes features detachable garters, or suspenders. In American English, it is sometimes known as a "Merry widow" (or "Merrywidow")..