The correct term is Close-fitting costume. These types of costumes are designed to fit snugly and closely along the natural curves and contours of the human body. The fit enhances the wearer’s silhouette and provides a sleek, streamlined look which is essential in various performance arts such as ballet, gymnastics, and figure skating, as well as in fashion garments that aim to emphasize body shape.
Close-fitting costumes require precise measurements and expert tailoring to ensure comfort and freedom of movement without excess fabric. The fabric used is often stretchable to accommodate body movements while maintaining the shape.
Examples of close-fitting costumes include leotards, unitards, and body-hugging evening gowns. The design is often used to highlight the anatomy and physique of the wearer, making it popular in dance and theatrical performances.