A Bubble Dress is a dress featuring a gathered inward hem that creates a rounded and voluminous silhouette, characterized by its airy structure and playful shape. Common elements include tucked-in hems, rounded balloon-like outlines, cinched waistlines, lightweight or structured fabrics such as taffeta, chiffon, or cotton, and simple or sweet decorative details. The overall style emphasizes playfulness, charm, and sculptural volume, creating a fashionable and youthful look with airy movement.