Polyester / Nylon (Textile)
The question

Is Polyester / Nylon (Textile) safe in activewear?

CautionActivewear

Synthetic petroleum-derived fibres. Each laundry wash releases hundreds of thousands of microfibre particles into waterways, which enter the food chain.

What the research flags

  • 700,000+ synthetic microfibres shed per wash cycle
  • Microfibres pass through wastewater treatment and enter the ocean food chain
  • Possible residual carcinogenic dyes in some formulations
  • Not biodegradable

Regulatory
Sheds microplastics into waterways with every wash cycle

Other activewear ingredients on file

Sources & references

  1. [1]
    Peer-reviewedPubMed / NCBI — pubmed.ncbi.nlm.nih.gov · ref 26792476
  2. [2]
    Peer-reviewedPubMed / NCBI — pubmed.ncbi.nlm.nih.gov · ref 31386829
  3. [3]
    DatabaseIngredient database — nylon-polyester-environment

Research disclaimer: Ratings reflect peer-reviewed research and regulatory assessments available at the time of publication, not the dose or formulation of any specific activewear product. This is not medical advice.