What was a defining feature of the 1930s fashion?

The defining feature of 1930s fashion was indeed the use of bias cut styles. In this era, designers like Madeleine Vionnet popularized the bias cut, which refers to cutting fabric at a 45-degree angle to the grain. This technique allowed garments to drape and contour to the body more elegantly, creating a fluid, flattering silhouette that emphasized the natural form. The bias cut was particularly suited for the popular styles of the time, such as evening gowns and dresses, which aimed to convey a sense of sophistication and femininity.

The focus on this cutting technique marked a significant shift in fashion towards more form-fitting and luxurious garments, which symbolize the economic and social changes following the Great Depression. While other elements included in the options, such as bold colors and exaggerated silhouettes, were present in different periods, they did not define the 1930s fashion as distinctly as the bias cut did.