The ball-gown silhouette has a fitted bodice and a very full skirt gathered at the waist.
Its dramatic proportions are associated with formal court dress and fairy-tale bridal styling. The skirt may be supported by layers of tulle, petticoats, crinolines, or a structured lining, creating a pronounced contrast between the waist and hem.
Ball gowns are often confused with A-line dresses. An A-line skirt widens gradually from the waist, while a ball gown becomes substantially fuller and usually looks more theatrical. The silhouette is also different from the mermaid shape, which remains close to the body through the hips and flares near the lower leg.
Modern bridal designers frequently combine the traditional ball-gown skirt with contemporary details such as strapless bodices, illusion sleeves, detachable overskirts, or minimalist fabrics. Because the term describes the shape rather than a particular designer or decade, ball gowns appear in both historic bridal fashion and current collections.