Why Did We Start Wearing Plastic Clothes? | MARINE|O

If someone told you your shirt was made from plastic, you'd probably assume they were joking.

The bulk of modern clothing is built from synthetic fibres, polyester, nylon, acrylic, elastane, and all of them are, in plain terms, plastic spun into thread. Today synthetics make up roughly 69% of global fibre production, with polyester alone at around 59%.

What's surprising is how recently this happened. For thousands of years, humans dressed almost entirely in wool, cotton, linen, hemp and silk. The shift to plastic took just a few generations. Here's how it happened.

It started with a search for fake silk

The shift began in the early 1900s when scientists started looking for cheaper alternatives to expensive natural materials like silk. The first breakthrough was rayon, a fibre made from processed wood pulp. It wasn’t fully synthetic, but it proved that fabrics could be engineered rather than grown.

Nylon: the first true synthetic (1935)

Then came nylon. Developed by DuPont in 1935, nylon was the world’s first fully synthetic fibre. It was strong, lightweight and could be produced at scale. During World War II it was used in everything from parachutes to ropes, demonstrating just how versatile synthetic materials could be.

Polyester arrives (1941)

A few years later came polyester. Developed in 1941, polyester offered something manufacturers loved: durability, wrinkle resistance and low production costs. As production increased, synthetic fibres became cheaper and easier to manufacture than many natural alternatives.

Over the following decades, polyester, acrylic and spandex transformed the clothing industry. They helped fuel the rise of fast fashion, allowing enormous volumes of clothing to be produced quickly and cheaply. Before long, synthetic fibres weren’t the alternative, they were the norm.

The synthetic boom (1950s-70s)

More followed: acrylic as a wool substitute (1950), then spandex (1958), which gave clothing stretch and reshaped activewear forever.

By the 1970s, synthetics were everywhere. Double-knit polyester ruled disco-era leisure suits. Cheap, colourful and nearly indestructible. For a while, plastic clothing was the height of fashion.

The reputation crash and the comeback

The leisure suit boom burned out fast. By the late 1970s and 80s, polyester had become shorthand for cheap, sweaty and tacky. It trapped heat, didn't breathe, and felt nothing like the natural fibres people associated with quality.

But it never went away. Quietly, manufacturers re-engineered it. Microfibres made synthetics softer and finer. Performance fabrics like fleece, moisture-wicking activewear and stretch blends rebuilt the category around function. Recycled PET (plastic bottles spun back into fabric) gave it a sustainability story. The plastic shirt came back, just better disguised.

Why it became the default

Synthetics won for three simple reasons: they were cheap to make, durable, and easy to manufacture at massive scale. Those same qualities are what powered fast fashion, and over a few decades, they turned plastic from a novelty into the standard material hanging in most wardrobes.

So you can wear synthetics every single day without ever consciously choosing them. They're just what's on the rack.

The takeaway

Clothing came from natural fibres for thousands of years, and plastic became normal in well under a century, feels like a strange thing to sit with.

Understanding how that happened is the first step to making a more informed choice about what you actually want against your skin.

If you'd rather keep plastic off your skin, we compared the natural-fibre options in our guide to the best plastic-free men's shorts in Australia.

Sources

• Textile Exchange – Preferred Fiber & Materials Market Report
• The Fibre Year Reports
• Historical records from DuPont and ICI regarding the development of nylon and polyester

Most shorts are made from plastic. These aren't. See the MARINE|O Merino Wool Walkshort →