Glittering reflexes and metallised effects A sparkling, metallised textured thread in iridescent tones, dazzling jewel and opal shades, pastel crystal hues and magnificent multicolours. Exclusive to MADEIRA, Supertwist No 30 can be used for embroidery, ornamental seams, and many other decorative applications on high speed sewing machines. New: The Opal and Crystal colors are now suitable for denim wash!