Flexible, sew‑in boning that adds discreet structure to garments. A polypropylene core is wrapped in a smooth nylon cover so it slides into channels and curves cleanly without cracking. Ideal support for strapless dresses, bodices, swimwear, lingerie, costumes and crafts. Cut to length and cap the ends for comfort. Washable; press on low heat using a press cloth for best results. For best results, test on a fabric scrap to confirm placement, stitch choice and care settings before finishing.