Polyester did not originate as a fashion material. Its development began in the 1930s and early 1940s, during a period marked by strong confidence in industrial chemistry as a way to create materials that were cheaper, more durable and more standardised than natural fibres. In 1941, British chemists patented polyethylene terephthalate (PET), laying the foundation for what would later become polyester textiles.

During World War II, shortages of cotton, wool and silk, largely redirected to military supply chains, accelerated research into synthetic alternatives. Polyester’s strength, water resistance and quick-drying properties made it suitable for technical applications such as parachutes, uniforms and equipment. At this stage, the fibre was designed primarily for function rather than comfort or everyday wear.

After the war, however, manufacturers faced a new challenge: industrial capacity built for wartime production needed civilian markets. Polyester was gradually introduced into apparel as a modern synthetic solution, promoted as durable, easy to wash and resistant to wrinkles, qualities that aligned with changing lifestyles in rapidly urbanising societies.
In the post-war decades, polyester became synonymous with domestic modernity. “Wash-and-wear” garments responded to the needs of a growing middle class seeking convenience and efficiency in everyday clothing. Easy maintenance and long product life were marketed as technological progress translated into daily life.

By the 1960s, designers such as André Courrèges and Pierre Cardin embraced the material’s structural properties. Polyester’s ability to hold sharp geometric shapes and clean silhouettes aligned perfectly with Space Age aesthetics, transforming an industrial fibre into a visual symbol of futurism (Europeana)

During the 1970s polyester became a defining material of mass fashion. Shiny shirts, leisure suits and flared trousers embodied an accessible, colourful aesthetic linked to expanding consumer culture. The iconic white suit worn by John Travolta in Saturday Night Fever (1977) captured polyester’s cultural moment, synthetic, spectacular and inseparable from mass consumption.  Polyester helped democratise fashion by enabling affordable garments that maintained appearance and durability, reinforcing the shift toward large-scale ready-to-wear production.

At the same time, polyester gained importance in sportswear and outerwear. In the 1980s, Malden Mills (now Polartec) developed polyester fleece, a lightweight insulating fabric that reshaped outdoor apparel thanks to its warmth-to-weight ratio and comfort.
This marked a turning point: polyester became not only economical but technologically essential, enabling performance characteristics difficult to achieve with natural fibres alone.

A conceptual shift emerged in the 1990s through experimentation such as Pleats Please by Issey Miyake. Permanent pleating, washability and lightness transformed polyester into a medium for design innovation rather than simply industrial efficiency. The material demonstrated that synthetic fibres could carry cultural and creative value.
At the same time, polyester became the backbone of global fast fashion. Its low cost, scalability and compatibility with rapid production cycles supported the expansion of high-volume apparel systems.

Today polyester accounts for more than half of global fibre production, but its environmental implications have become increasingly visible. Derived largely from fossil fuels, the material is associated with greenhouse-gas emissions and end-of-life challenges. Synthetic garments can release significant quantities of microfibres during washing, contributing to marine pollution. Research also suggests that recycled polyester, while reducing reliance on virgin resources, does not fully eliminate microplastic shedding.

Polyester’s image has therefore shifted dramatically: from miracle material to contested fibre. It remains indispensable in technical apparel, sportswear and innovative textile applications, including recycled versions promoted within circular economy strategies. Yet its dependence on petrochemical resources and complex recyclability challenges continue to raise systemic questions.

The history of polyester is ultimately more than the history of a fibre. It reflects how chemistry, industry, fashion and mass consumption became deeply intertwined, producing garments that have quite literally dressed the world, even as the textile ecosystem now re-examines their future role.