If you are sourcing activewear and a buyer or retailer is asking for “eco certs,” they almost always mean one of three things: OEKO-TEX STANDARD 100 (chemical safety on the finished garment), bluesign (responsible chemical, water and energy inputs upstream), or GRS — the Global Recycled Standard (verified recycled content with a tracked chain of custody). They are not interchangeable. Each guarantees something different, each has clear limits, and which one matters most depends on whether you sell into the EU, the US, or Australia. This guide explains all three so you can ask suppliers for the right document instead of a vague “we’re certified.”
The Three Certifications at a Glance
| Certification | What it certifies | What it does NOT cover | Where claimed |
|---|---|---|---|
| OEKO-TEX STANDARD 100 | The finished article (or each component) is tested free of harmful substances above set limits | Recycled content; labour conditions; water/energy use in production | On hangtags and labels per article |
| bluesign | Responsible chemical, water and energy inputs across the production process (input-stream management) | Recycled content claims; finished-garment-only testing; social audits | System partner status; bluesign-approved fabrics |
| GRS (Global Recycled Standard) | Verified recycled material content + chain of custody, plus some environmental and social criteria at each site | Finished-garment chemical-safety testing equivalent to OEKO-TEX | On products meeting the 50%+ recycled threshold for the label |
OEKO-TEX STANDARD 100 — Chemical Safety You Can Put on a Hangtag
OEKO-TEX STANDARD 100 answers one question: is this textile free from harmful substances at levels that could affect human health? Every component that goes into a certified article — the outer fabric, the thread, the elastic, the print, the zipper pull — is tested against a long list of regulated and known-harmful chemicals, with stricter limits for products that touch skin or are made for babies.
What it guarantees: the finished item, as tested, is within those chemical limits at the point of certification. What it does not do: it says nothing about how the fabric was produced, whether any of it is recycled, or how the workers who made it were treated. It is a finished-product safety certification, not a process or social one.
For most activewear brands this is the baseline eco/safety credential. It is well recognised by consumers, easy to verify (each certificate has a number you can check on the OEKO-TEX site), and meaningful for skin-contact garments like seamless leggings and base layers or swimwear that sit against the body for hours.
bluesign — Responsibility Built In Upstream, Not Tested at the End
bluesign takes the opposite approach to OEKO-TEX. Instead of testing the finished garment, it manages the inputs — the chemicals, the water, the energy, the raw materials — before they ever become fabric. A bluesign system partner commits to using only approved chemical formulations and to controlling resource use and emissions across the whole production chain.
The practical signal of bluesign is process integrity: a bluesign-approved fabric was made with screened chemistry and managed water and energy use from the start, rather than being remediated and tested afterwards. That input-stream model is why bluesign is heavily favoured by technical outdoor and performance brands in Europe.
What it does not cover: bluesign is not a recycled-content claim, and it is not a substitute for the article-level testing that OEKO-TEX provides on a finished garment. The two are complementary — many premium fabrics carry both.
GRS — Proving Recycled Content Is Real
GRS, the Global Recycled Standard administered by Textile Exchange, exists to stop “recycled” being an unverifiable marketing word. It verifies the percentage of recycled material in a product and tracks that material through a documented chain of custody — every site that handles it, from recycler to mill to garment factory, must be certified, with transaction certificates proving the recycled content moved through the supply chain.
A product needs a minimum of 20% recycled content to qualify, and 50%+ to carry the full GRS product label. GRS also folds in social and environmental criteria at each certified processing site, so it carries more than a content claim alone. What it is not: a finished-garment chemical-safety certification on the OEKO-TEX scale. If you are marketing recycled polyester or recycled nylon and a buyer or regulator wants proof, GRS is the document that holds up — pair it with OEKO-TEX for the chemical-safety side.
Eco Certifications vs Social-Compliance Audits
This is the distinction buyers most often blur. OEKO-TEX, bluesign and GRS are about materials and the environment. BSCI (amfori) and Sedex/SMETA are about people — labour conditions, wages, working hours, health and safety inside the factory. A factory can hold GRS and still need a separate BSCI or Sedex audit, because they measure entirely different things, and most serious retail programmes require evidence of both.
If your buyer’s question is really about labour and ethical audits rather than fabric, read our companion guide: Activewear Certifications Explained — BSCI, Sedex & social compliance.
Which Certifications Matter for EU vs US vs AU Buyers
| Market | What buyers typically prioritise | Why |
|---|---|---|
| EU | bluesign + OEKO-TEX, GRS for recycled claims | Strictest chemical regulation (REACH), strong outdoor/performance demand for managed inputs, and tightening green-claims rules that punish unverifiable “eco” marketing |
| US | OEKO-TEX + GRS | Consumer-facing recycled and “non-toxic” claims drive demand; growing state-level PFAS bans make documented chemistry important |
| Australia / Japan | OEKO-TEX baseline, GRS where recycled is marketed | Premium consumer markets that reward credible certified eco claims, especially in performance and athleisure |
A recurring theme across all three markets: avoid unsupported green claims. EU green-claims enforcement and US/AU consumer law both treat “recycled” or “sustainable” as statements you must be able to prove. A real certificate number is the proof; a vague reassurance is a liability.
How This Works at Our Factories
Across the six factories in our group we hold OEKO-TEX STANDARD 100, bluesign and GRS, alongside the BSCI and Sedex social audits. More than 60% of our production now runs on recycled or eco-certified fabrics, our finishes are PFAS-free, and we can supply biodegradable nylon, Sorona®, Tencel™ and bamboo viscose where your design calls for them.
In practice that means we can match the certification stack to your product and your target market: OEKO-TEX as the safety baseline, GRS when you want to make a recycled claim that survives scrutiny, and bluesign-approved fabrics for technical lines selling into Europe. We supply the actual certificate numbers and transaction certificates — not just a logo — so your own compliance team or retail buyer can verify them independently. Third-party SGS, BV or Intertek testing to AATCC, ISO, REACH and RSL is welcome on top.
Get the Right Certificates for Your Program
Tell us your product and your target market, and we will tell you exactly which of these certifications apply and send you the supporting documents for the facilities that would run your order. Reach Jerry, our supply-chain specialist, via the contact page — replies come within one business day, backed by five in-house business teams.