Style UW417AB coated, sprung-steel underwires offer versatile support with balanced proportions ideal for many bra and neckline styles. Features reliable progression and moderate asymmetry patterns that provide comfortable, all-day support for classic bra styles. The consistent scaling across sizes 10 to 18 makes UW417AB perfect for production runs and multi-size collections.

Excellent for balconette, full-cup, and  plunge styles, these wires deliver predictable performance that simplifies pattern development and manufacturing planning. 'A' sizes are ideal for applications where barely-visible support is required.

Best for:

• Balconette
• Bandeau
• Demi
• Halter
• Plunge/ Deep plunge
• Side-boost
• Sweetheart

 All Formline wires feature a unique nylon coating for the protection of wire casing and seams from wear and tear. Additional coating at each end of the wire provides a high level of comfort and minimises wire 'push-through'. To ensure high quality results we recommend Formline plush wire casing which is suitable for next-to-skin application.

Manufactured to a high standard; all wire sets are individually checked for quality, consistency and integrity.

See size guide for dimensions. Please note that volumetric cup sizing is estimated only and wires may be applicable to a wider range of cup sizes than described. For sampling, or prior to production, we recommend the purchase of a pair to test with garments and patterns. 

Out of stock items are usually under manufacture. Get in touch if you need to know the ETA. Or click 'Notify Me' to get an email when back in stock.

For enquiries regarding bulk orders or expanded grading options please email us (MOQ may apply).