Under the brand name RITZA, Julius Koch produces a wide variety of well-documented and well-tested sewing threads for the shoe and leather goods industry. We offer an extensive range of constructions and colours – some are suitable for hand sewing, while others are perfect for machine sewn articles.
The superior construction of RITZA sewing thread has made us a worldwide leader in sewing thread and guarantees excellent performance, high resistance, and a beautiful finish.

We offer an extensive product range of both braided and twisted threads. The majority of our threads are made from durable polyester, which is highly resistant to dust and preserves the colour. We also offer linen and nylon threads to meet the needs of the leather goods industry. Custom-dyed solutions are available upon request and subject to our minimum order requirements.

You can read more about our sewing thread products on this Web site.

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