A Leg-of-Mutton Sleeve is a sleeve style characterized by dramatically puffed shoulders that taper gradually from the upper arm to the wrist, creating a bold vintage silhouette. Common elements include exaggerated puff shoulders, fitted forearms, pleated or gathered construction, structured fabrics such as taffeta, cotton, or wool blends, and frequent use in Victorian-inspired, court-style, and retro garments. The overall style emphasizes grandeur, theatrical elegance, and strong shoulder definition, evoking 19th-century European fashion aesthetics.