Silhouette is a term often used to describe a fashion. I am currently working on a lesson plan for my students about the fashion cycle. Today the beginning/ending of a 'fashion' is about 18-24 months. I want them to also be aware of the 'long view'...say 100 years (1810-1910). The female fashion silhouette (basically 3 shapes:bell, bouffant and straight) has changed from
Empire style with stays (Napoleon was trying to create a French empire)
to the bell shape of American Civil War dresses supported by hoops
by the late century...it was a bouffant style with bustle
Each of these styles had distinctive undergarments.The Flapper discarded all corseting and returned to the straight silhouette.