Production details

J.C. Rennie are able to supply very small quantities through to large, bespoke, production runs of yarn. Typical clients include knitwear brands requiring yarn for their collections. In addition, J.C. Rennie produce their own collection of yarn suitable for both knitting and weaving, as well as their Rennie Handknit range. The mill is best known for its authentic ‘Supersoft’ yarn and Scottish Heather colour. Specific spun yarns include: Unique Shetland 9Nm, Supersoft Lambswool 11.3Nm, Supersoft Cashmere 11.3Nm, Cheviot 7.4Nm, Chunky Lambswool 4Nm, Rennie Cashmere (100%) 11.3Nm, Lambswool Silk 2/9Nm, Chunky Lambswool Donegal 2.0RNm, Supersoft Lambswool Donegal 2/9Nm, Chunky Freedom 4Nm and Shetland Freedom 9Nm (undyed wool).

Turnaround Time
Project dependant
File Types
Minimum Order
Production Access
Works With
  • Large business
  • Small companies
  • Professionals
  • General public
  • Students
  • Bespoke 1-offs
  • Sample production
  • Prototypes
  • Short run
  • Medium run
  • Large run


J.C. Rennie are family run woollen mill established in 1798, started at what was essentially a cottage industry before the advent of the industrial revolution. The mill was once powered by a water wheel that remains in situ to this day; and the company has become famous for the production of woollen yarn for knitwear and weaving.