Short answer: recycled polyester (often called rPET) and recycled nylon are widely used in activewear. At wholesale scale two things decide whether a recycled line works: the fabric has to pass the same performance checks as the virgin fabric it replaces, and the recycled claim has to be backed by chain-of-custody documents that cover your actual goods. Marketing wording comes last and must not say more than the documents support.
For the specific evidence needed to say “made with recycled polyester”, see what proof a recycled polyester claim needs. For manufacturer-side detail, see recycled polyester clothing manufacturing and recycled nylon activewear.
Performance comes first
A recycled fabric is a different fabric article, not the same fabric with a label change. Compare it with the current fabric on the same tests: stretch and recovery (ASTM D2594), opacity when stretched, pilling (ISO 12945-2), colour fastness (ISO 105-C06, ISO 105-E04), dimensional change after washing, and moisture behaviour (AATCC TM195) if you claim it. If it performs differently, the pattern or care may need adjusting. Do not assume recycled and virgin fibres behave identically, or that they always differ; test.
Where recycled polyester and nylon come from
| Source | What it is | Points to confirm |
|---|---|---|
| Post-consumer bottles (PET) | Used bottles collected, cleaned and turned into fibre; the most common rPET source | Recycled content share in the fabric; feedstock evidence |
| Post-consumer textiles | Used garments or textiles recycled into new fibre (textile-to-textile) | Process (mechanical or chemical); availability and cost |
| Pre-consumer (post-industrial) waste | Production scrap such as fibre or fabric waste | Whether it would otherwise have been discarded; how it is counted in claims |
| Recycled nylon | From production waste or post-consumer items such as nets and carpet | Feedstock and mill documentation |
Recycled content can be blended with virgin fibre and elastane. The fabric’s recycled percentage is what matters for a claim, not the yarn supplier’s headline.
Verification at wholesale scale
- Chain-of-custody standards. Textile Exchange’s Global Recycled Standard (GRS) and Recycled Claim Standard (RCS) are common in apparel. They certify sites in the supply chain and use transaction certificates to track certified material between them. Check the current version of the standard (GRS-101 is at V5.0, dated 1 July 2026) and its labelling rules.
- Scope certificate versus transaction certificate. A supplier’s scope certificate shows that a site is certified for certain processes and products. It does not prove that your shipment contains recycled material; transaction certificates for your goods do that.
- Every step counts. If a step in the chain (for example the garment factory) is not certified where the standard requires it, the chain is broken for that standard’s claim.
- Lot consistency. At wholesale volumes, reorders may come from different fibre or fabric lots. Specify that the recycled fabric article and its documentation must be the same on reorder, and require notice of substitutions. See fabric lot and substitution approval.
Claim wording for catalogues and product pages
| Wording | Assessment |
|---|---|
| “Made with 75% recycled polyester” (where documented) | Specific and checkable, if the percentage is supported for this product |
| “Recycled polyester shell; lining is virgin polyester” | Qualified to the part that is recycled |
| “Eco-friendly”, “sustainable”, “green” | General environmental claims; hard to substantiate and restricted in the EU |
| “100% sustainable”, “zero impact” | Avoid; not supportable for a manufactured garment |
The percentage in the first example is illustrative, not a figure for any product. In the U.S., the FTC Green Guides cover recycled content claims (16 CFR 260.13) and general environmental benefit claims (16 CFR 260.4). In the EU, Directive (EU) 2024/825 tightens rules on generic environmental claims and sustainability labels. Fibre content labels still name the fibre (for example “polyester”); “recycled” is an additional claim, not a fibre name.
Cost and sourcing reality
Recycled fabrics are often priced differently from virgin equivalents and may carry their own mill minimums and colour limits. Certification adds documentation work at each step. Ask for quotes on the same specification with and without recycled content so the difference is visible, and confirm minimums per colour. See how MOQs work.
Buyer checklist
- Same performance tests for the recycled article as for the current fabric.
- Fabric recycled content percentage, and feedstock type.
- Scope certificates for each certified site, and transaction certificates for your goods if you will make a certified claim.
- Reorder rule: same article and documents, notice of substitution.
- Claim wording reviewed against the evidence before catalogues are printed.
Fact, advice and uncertainty
Fact: recycled claims need evidence for the product sold; general “eco” claims are restricted. Advice: qualify performance first, then build the document chain, then write the claim. Uncertainty: standards and claim rules are being revised; check the current versions when you place the order. This is general guidance, not legal advice.
Related: sustainable activewear manufacturing, recycled yoga fabrics and recycled fleece hoodies. To discuss a recycled activewear programme with Knitwear Base, use the contact page.
Sources and further reading
- Textile Exchange, GRS-101 Global Recycled Standard (current version V5.0, 1 July 2026)
- Textile Exchange, Standards (GRS, RCS and other chain-of-custody standards)
- eCFR, 16 CFR 260.13, FTC Green Guides: recycled content claims
- eCFR, 16 CFR 260.4, FTC Green Guides: general environmental benefit claims
- EUR-Lex, Directive (EU) 2024/825 on empowering consumers for the green transition
- eCFR, 16 CFR 303.6, Generic names of fibers to be used
- ASTM D2594/D2594M, Stretch Properties of Knitted Fabrics Having Low Power
- ISO 12945-2:2020, Fabric propensity to surface pilling, fuzzing or matting: modified Martindale method
- ISO 105-C06:2010, Colour fastness to domestic and commercial laundering
- ISO 105-E04:2013, Colour fastness to perspiration
- AATCC TM195, Liquid Moisture Management Properties of Textile Fabrics
Rules and standards are summarised from their official pages for general guidance; this is not legal advice. Check the current version and the requirements of your own market before you rely on them.
