Designed with a seamless construction, using adhesive instead of stitching for a smooth finish that won't show through clothing. Its stretchy material moves with you, ensuring comfort all day long. The cups can be inserted and removed, and the position can be adjusted comfortably. Item Size Chart Size Underbust XS 18.3" (46.4 cm) S 20.1" (51.0 cm) M 21.2" (53.9 cm) L 22.8" (57.9 cm) XL 25.1" (63.8 cm) *Size chart for reference only. Actual size might differ slightly due to the feature of the fabric.