COA: 77.77 GBp
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Home • Industry FAQs • What is the thread recommended by Coats for stitching of vulcanised / autoclave upper shoes? What SPI should we use to stitch adult upper?
  1. Coats Gral is recommended for upper and other polyester threads for other purposes. For example, Gral and Astra for zigzag and Sylko fw for embroidery. The use of any nylon threads will turn the thread to yellow after vulcanising process.
  2. It depends on brands specifications, but generally major brands use range of 8-10 for adult upper shoes.