Frequently Asked Questions
Is OEKO-TEX the same as organic?
No. OEKO-TEX tests for harmful substances in the finished textile. A conventional cotton product can be OEKO-TEX certified; organic is a claim about how the fibre was grown.
Is GOTS certification legit?
Yes, it is audited by third parties across the supply chain. Ask for the scope certificate and the transaction certificate for your order.
Which is better for socks?
For most sock buyers, OEKO-TEX is the practical answer because the concern is skin contact. GOTS matters if organic origin is part of your brand promise.
Can a sock be certified for both?
Yes. The two certifications cover different things and are often held on the same product.
Who holds the certificate on a custom order?
Often the yarn mill. That is standard practice. The document should name the holder and the article, and you should verify it matches the yarn used in your order.
OEKO-TEX and GOTS answer different questions. OEKO-TEX tests the finished textile for harmful substances; GOTS covers the whole organic supply chain from the raw fibre to the label. A product can be OEKO-TEX certified and not organic, and GOTS certification does not automatically mean every test for harmful substances has been passed.
The Short Answer
If you are buying socks or textiles and the question is “is this safe against the skin”, OEKO-TEX is the answer. If the question is “where did the fibre come from and how was it made”, GOTS is the answer. They are not competing versions of the same thing.
Side by Side
| OEKO-TEX | GOTS | |
|---|---|---|
| What it covers | Harmful substances in the finished product | Organic fibre content and the processing chain |
| Scope | Product level; fabric and finished goods | Supply chain; farms, mills, dyeing, labour standards |
| What it is not | Not a claim about organic farming | Not a complete harmful-substances test on its own |
| Typical buyer | Brands that need a skin-safety claim | Brands that need an organic and ethics claim |
| Certification cost | Lower; per product or per facility | Higher; third-party audits across the chain |
Why the Difference Matters When You Order
As a buyer, the distinction protects you twice. First, a supplier who says “our socks are OEKO-TEX certified” is making a claim about the textile, and you should ask which article is certified and under whose name. Second, a supplier who says “GOTS organic” is making a claim about the supply chain, and you should ask for the scope certificate, not just a logo.
This is the ordinary due-diligence any buyer should do. Certificates are often held by the yarn mill or the fabric supplier rather than by the sock manufacturer, and that is a normal arrangement; it only becomes a problem when the claim on the invoice is broader than the document behind it.
What We Can Provide
Our yarn supply chain includes certified options, and certificates can be issued per order from the yarn mill. We do not claim certifications that are not in our own name, and we will tell you which mill holds the certificate for the yarn in your order. If your market requires a specific label, say so at the start and we will source the right yarn rather than retrofit a claim afterwards.
The fibre construction of our main ranges is in our material guide, and how to read a full production specification is covered in our tech pack guide.
Choosing Between Them
For baby and children’s products, skin safety is usually the priority and OEKO-TEX is the common choice. For brands whose positioning is organic and ethical end-to-end, GOTS is the stronger claim and the heavier lift. Many products carry both, which is not contradictory: one covers safety, the other covers origin and process.
How to Verify a Claim Without Embarrassing Anyone
Verification is ordinary practice in textile sourcing and every serious supplier expects it. Three checks cover almost everything. Ask for the certificate number and the name of the holder. Ask which article or which yarn the certificate covers, because a certificate for one mill’s yarn is not a certificate for your finished sock. And check the dates, because certificates renew and a valid-looking scan can be a year out of date. None of this is accusatory; it is the same thing customs and your own customers will ask you for, and getting the paperwork once at the start is much cheaper than getting it under pressure at the border.
Where a supplier holds certificates through their yarn mill, ask them to note the mill on the order confirmation. When your customer asks where the certification comes from, you have a straight answer with a document behind it, and that is the whole point of paying for certified yarn in the first place.
Which Certification Matters for Which Market
Market expectations vary more than most buyers expect. European importers frequently ask for both documents and a supply-chain statement; North American brands often treat OEKO-TEX as sufficient for a skin-safety claim; baby and children’s products in every market attract the strictest questions. If you are launching in several regions, ask what the strictest one requires at the start and design the order around it. Retrofitting a claim after production is where cost and delays appear.
Conclusion
OEKO-TEX answers whether a textile is safe against the skin; GOTS answers where the fibre came from and how it was made. Choose by the claim your market needs, verify by certificate number and holder, and never let the wording on the invoice outgrow the document in the file.
Planning a custom run with certified yarn options? Review our custom yoga and Pilates grip socks and custom socks manufacturer specifications.
Frequently Asked Questions
Is OEKO-TEX the same as organic?
No. OEKO-TEX tests for harmful substances in the finished textile. A conventional cotton product can be OEKO-TEX certified; organic is a claim about how the fibre was grown.
Is GOTS certification legit?
Yes, it is audited by third parties across the supply chain. Ask for the scope certificate and the transaction certificate for your order.
Which is better for socks?
For most sock buyers, OEKO-TEX is the practical answer because the concern is skin contact. GOTS matters if organic origin is part of your brand promise.
Can a sock be certified for both?
Yes. The two certifications cover different things and are often held on the same product.
Who holds the certificate on a custom order?
Often the yarn mill. That is standard practice. The document should name the holder and the article, and you should verify it matches the yarn used in your order.
How We Handle Certification Requests
We work with certified yarns and can arrange the mill documentation for an order; the certificate is issued by the yarn holder and reflects the yarn used in that run. We would rather tell a buyer that the certificate lives at the mill than print a claim we cannot support. It is a small difference in wording and a large one in what happens when the paperwork is examined.
A Note on Cost
Certified yarn costs more than uncertified, and a certified supply chain costs more again. Budget for it the way you budget for anything that carries a claim: once, correctly, with the document that supports it. The alternative, retrofitting a claim under pressure, costs more in time and credibility than the certification ever would have.
Sourcing socks and need the right yarn with the right paperwork? Tell us the market you sell into and we will specify accordingly.