Opti S Stitchline

Opti S StitchLine

Helps stitching run straight, ensuring normal slider running

Opti S StitchLine, with unique S-technology, is specially developed to meet the needs of correct zip insertion and function, and guide material positioning.

A clever guiding line indicates the distance from the spiral needed to ensure the normal slider running, making sewing easier.

Constant clearance of at least 2mm from the top to the bottom of the zip should be kept in order to allow the slider smooth passage along the full length of the zip. Extra care should also be taken at cross-seam positions where the thickness of fabric / leather multilayer gives additional weight and creates slider running problems.

Discover more about Opti S StitchLine. Download our product data sheets or contact one of our experts.

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Available types

Available types
  Close end Open End Zip Two Way Open End TWCE O-form TWCE X-form Continuous chain
  Close End Open End Two Way Open End TWCE O-form TWCE X-form Continuous Chain
S60 Available Available Available Available Available Available
S80 Available Available Available Available Available Available


Polymer spiral zips are usually made from polyester or polyamide (nylon). When using continuous chain on rolls in regular garment production (generally men's trousers) polyamide spiral would be a better option, as it has the property of high elasticity, which is needed to make the two top ends of a zip even. Zips with polyester spiral are better suited to manufactures using ready-made or cut zips.

Prior to bulk production, Coats Opti recommends that tests and trials are carried out on all zip uses/applications in order to verify that the product meets end customer requirements and the demands of internal processing conditions. Coats Opti supports customers with advice on individual applications on request; if you have any questions or concerns, please contact us.