A Timeless Fabric

with a Rich History

On the market since 1985

GT Portugal has been adjusting its methods to the ever changing requirements of our clients. This flexibility allows us to respond with innovative, sustainable materials and finishings through technological innovation, creativity, and process uniqueness.

Denim, a durable cotton twill fabric known for its distinctive diagonal weave pattern, has an enduring presence in the world of fashion. Its history is steeped in tradition and innovation, making it a quintessential material that continues to capture the imagination of designers, consumers, and culture at large. In this article, we explore the rich history, production process, and enduring appeal of denim.

The Origins of Denim

Denim's story begins in the 18th century in the town of Nîmes, France, where it was originally woven and known as "serge de Nîmes." The fabric gained popularity due to its robust nature, ideal for workwear garments, such as overalls and trousers. However, it wasn't until the fabric reached America that it truly made its mark.

The American Denim Revolution

Denim's transformation from a simple workwear material to an iconic fashion staple took place during the mid-20th century. Figures like James Dean, with his rebellious style, and Marilyn Monroe, with her timeless allure, helped catapult denim into the realm of pop culture. Blue jeans became synonymous with youth, rebellion, and the American spirit.

Production Process

The production of denim is a meticulous and fascinating process that involves several key steps:

  1. Cotton Selection: Denim starts with the selection of high-quality cotton, typically known for its strength and durability.
  2. Carding and Spinning: The cotton fibers are carded and spun into yarns, which are often dyed with indigo to achieve the classic blue hue.
  3. Weaving: Denim's signature diagonal pattern is created through a twill weaving technique, where the weft thread passes under two or more warp threads, forming a diagonal line.
  4. Sanforization: To prevent excessive shrinkage, the fabric is often sanforized, a process that pre-shrinks the denim.
  5. Finishing: Denim can undergo various finishing processes, such as distressing, stone washing, or sanding, to achieve different textures and styles.

Here's why denim remains timeless:

Durability - Comfort - Iconic Style - Eco-Friendly Initiatives

Denim's journey from a small town in France to the forefront of global fashion is a testament to its enduring appeal. It has weathered the test of time and continues to evolve, remaining a symbol of individuality, authenticity, and style. As we look ahead, denim is likely to maintain its place as a beloved fabric that bridges the past, present, and future of fashion.

In Portugal, More Than 50%

of electricity Is generated by renewable sources. More and more textile companies have their own solar power production, which means our jerseys are not only innovative and unique, but also sustainable.

MOQs & Lead Times

We are specialised in high end products produced with the most outstanding materials and extraordinary finishes.



Our usual MOQs are 300 pieces per style and colour, but we try to be as flexible as possible in order to remain competitive with prices while maintaining the overall quality of materials.



It takes us 1 to 2 weeks to produce a prototype made out of stock materials. This allows you to iterate through your product ideas fast, tuning your designs with maximum flexibility.



It takes us 4 to 6 weeks to produce an SMS, fashioned with your chosen materials and colours. Please note this may vary accordingly and that August is usually a slower month in Portugal.



It takes us 6 to 9 weeks to bring your ideas to life in production. We specialise in high end products produced with the most outstanding materials and extraordinary finishes.

See also related articles:

Thank you for contacting us.