Versatile foam cups add smooth shaping to bras, camisoles, leotards and swim styles. Low‑bulk construction sits comfortably under knits and performance fabrics. Cups may be trimmed for custom fit or styling and sewn in by hand or machine. Ideal for replacements or new garments when extra coverage is desired. Two size B cups per pack for a coordinated pair of inserts. Suitable for home and classroom use; keep with core sewing notions for consistent results.