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Is nylon plastic?

Yes.

Yes — nylon is plastic. It was the first fully synthetic fiber ever made, a polyamide polymer derived from crude oil.

Plastfri score
100

What nylon actually is

Nylon (labeled “polyamide” or “PA” in Europe) was invented by DuPont in 1935 as a silk substitute. It is a thermoplastic: heat it and it melts, exactly like any other plastic.

Its strength and elasticity make it the default for tights, swimwear, activewear, windbreakers, backpacks, and umbrellas.

The microplastic problem

Nylon sheds microfibers in the wash just like polyester, and swimwear sheds directly into pools and oceans. Nylon production is also energy-intensive and releases nitrous oxide, a greenhouse gas roughly 270 times more potent than CO₂.

How to spot nylon on the label

Look for “nylon”, “polyamide”, or “PA” in the fiber content — European labels almost always say polyamide. Grade names like PA6 and PA66 are manufacturing variants of the same plastic. Trademarked fabrics built on nylon include Cordura (heavy-duty packs and workwear), ripstop nylon (jackets, tents, umbrellas), and Econyl (regenerated nylon used in swimwear and leggings).

Nylon concentrates in specific product types: tights and hosiery, swimwear, leggings, windbreakers and shell jackets, backpacks, and umbrellas. If a product in one of those categories doesn’t disclose fibers, nylon (or polyester) is the likely answer — which is exactly the kind of gap Plastfri’s keyword estimates are tuned to flag conservatively.

Washing and care: how to shed less

Nylon sheds microfibers in the wash like any synthetic, so the same playbook applies: wash cold, wash less, use gentle cycles and full loads, and use a fiber-catching bag or an external filter if you can. Nylon dries fast — air-drying is easy and avoids the extra abrasion of a tumble dryer.

Swimwear deserves special mention because it sheds directly into pools, lakes, and the sea, with no wastewater plant in between. Rinse swimwear by hand rather than machine-washing it after every wear, and retire it to low-friction uses when it starts to degrade.

The recycling reality

Nylon is one of the few synthetics with a genuine chemical-recycling story: nylon 6 can be depolymerized back to its monomer and re-spun, which is what regenerated-nylon programs like Econyl do with fishing nets and carpet. That is real, and better than landfill.

The catch is scale and blends. Most nylon garments are blended with elastane, which complicates recycling, and collection routes for worn-out synthetic clothing barely exist. Regenerated nylon is also still nylon: it sheds the same fibers and will not biodegrade. Treat it as harm reduction for gear you genuinely need, not as a free pass.

How Plastfri scores it

Nylon and polyamide both score 100/100. A typical swimsuit at “82% nylon, 18% elastane” scores 100 — both fibers are fully synthetic.

Recycled or regenerated nylon scores the same 100, with the recycled claim noted separately in the breakdown.

Plastic-free(r) alternatives
  • Wool (base layers)
  • Cotton canvas (bags)
  • Silk (hosiery era alternatives are limited — buy fewer, better)

Common questions

Is polyamide the same as nylon?

Yes. Polyamide is the generic chemical name; nylon is the common (originally trade) name. On EU labels you will usually see “polyamide”.

Is recycled nylon (Econyl) still plastic?

Yes. Regenerated nylon diverts waste like fishing nets, which is good — but the resulting fiber is still plastic and still sheds.

Does nylon biodegrade?

No. Nylon persists like other plastics, fragmenting into smaller pieces rather than biodegrading.

Is nylon waterproof?

Nylon fiber absorbs some water, but tightly woven nylon shells shed rain well and dry fast — a genuine performance case for synthetics in outerwear that is washed rarely.

Does nylon shed more or less than polyester?

Construction matters more than polymer: tightly woven shells shed relatively little, while brushed or knitted fabrics shed more. Both shed plastic; neither biodegrades.

Why is nylon in almost all tights?

Nothing natural matches its combination of fineness, strength, and stretch at the price. That is a real tradeoff — the practical answer is fewer, better pairs, washed gently in a bag.

Plastfri spots nylon for you. Scores every product while you shop — covers, dims, or labels the high-plastic ones.

Score a product — free