New single breast insert with air pump. Size 5. Great for someone who has lumpectomy or mastectomy. Description ADJUST TO PERFECTION - Balance Adapt Air Medium Delta (MD) is our most innovative full shaper yet. It’s designed with an air chamber that makes it easy to adjust the shaper so it meets your needs. Simply use the pump to fine-tune the fit and volume of the shaper until it suits the natural curve of your breast and sits comfortably against your skin. Retails for $400