A Balloon Sleeve is a sleeve style characterized by a voluminous puffed shape that gathers tightly at the cuff, creating a rounded silhouette with dramatic volume. Common elements include oversized sleeves, gathered cuffs such as elastic or banded finishes, lightweight fabrics like cotton, chiffon, or tulle, and frequent use in dresses, blouses, and vintage-inspired garments. The overall style emphasizes romance, elegance, and sculptural visual impact.