Clothing certifications explained in one line: each label verifies one defined scope, whether that is where a fibre was grown, how a fabric was processed, whether a finished garment passed chemical testing or how a company conducts itself. No single logo follows a garment from field to finished piece. Knowing which scope a logo covers lets you judge a tag with confidence.
What does a clothing certification actually certify?
A clothing certification confirms that an independent body checked one specific claim against a published standard. The claim might concern organic fibre content, animal welfare on a farm, the chemical safety of a finished item or the conduct of a company. Each standard sets its own scope, and a logo carries that scope and nothing beyond it.
The logo on a tag is shorthand for an audit trail. Behind it sit a standard owner, an approved certifier and a certificate number. That number ties the tag to a named company and a defined scope, which makes it the part worth checking.
Four things a certification can cover
Most logos on natural-fibre clothing answer one of four questions. Sorting them by question shows quickly what a claim proves.
Fibre and farming
The Organic Content Standard (OCS), owned by Textile Exchange, verifies the organic content of a product and tracks it through the supply chain. Only material from farms certified to an organic standard in the IFOAM family is accepted.
The Responsible Wool Standard (RWS), also from Textile Exchange, evaluates wool farms on animal welfare, land management and social requirements. Every site from the farm to the seller in the final business-to-business transaction must be certified.
Linen has its own origin labels from the Alliance for European Flax-Linen & Hemp. Masters of Flax Fibre, formerly European Flax, certifies European-grown flax fibre. Masters of Linen applies to European spinners, weavers and knitters, and the Alliance states that every step from cultivation to yarn and fabric is carried out by European companies.
Processing and supply chain
The Global Organic Textile Standard (GOTS) starts where organic farming ends. Its owner, Global Standards, requires every company that processes, manufactures or trades the product to hold certification, and certified facilities are audited on site every year.
GOTS labels come in two grades. “Organic” means at least 95% certified organic fibre. “Made with organic” covers 70% to 95%, and consumer-facing uses must state the exact percentage. Each label also shows the certifier and the certification number.
The grade matters on a tag. The same logo can sit on a garment that is almost entirely organic and on one where as much as 30% of the fibre is not certified organic.
Finished product and life cycle
OEKO-TEX STANDARD 100 is a test for harmful substances. Every thread, button and accessory is tested against a list of more than 1,000 substances, and the limits tighten as skin contact increases. The standard sorts articles into four product classes, from baby products at the strictest end to home textiles. A jacket falls in class 3, for products without direct skin contact.
This standard speaks to chemistry. For fibre origin, look to the schemes above. OEKO-TEX also publishes separate standards for other questions, such as OEKO-TEX ORGANIC COTTON.
The EU Ecolabel looks across the whole life cycle of a product. The European Commission sets its criteria product group by product group, and textile products have a criteria set of their own.
The company behind the garment
B Corp certification, issued by B Lab, assesses a business as a whole. B Lab’s directory lists Gene Style Ltd, the company behind Lora Gene, as a Certified B Corporation since August 2020.
That certificate describes the company. The fibre in any single piece is described by its own composition label and product page.
View Lora Gene
The company is listed by B Lab as a Certified B Corporation since August 2020.
Clothing certifications explained: four checks before you buy
Four checks turn a logo into evidence. Identify what the logo certifies, find the certificate number, read the percentage beside it, and confirm whether the certificate belongs to the garment, the fabric or the company. Each check uses only the tag and the scheme owner’s public tools.
- Identify the scope. Match the logo to one of the four questions above. Since 27 September 2026, a sustainability label in the EU must rest on a certification scheme or be set by a public authority, so a leaf or a green mark with no named scheme deserves a second look.
- Find the number. A GOTS label shows the certifier and the certification number. An OEKO-TEX label can be checked in its Label Check by scanning the QR code or entering the certificate number. Textile Exchange keeps a directory of certified companies for RWS and OCS.
- Read the percentage. The composition label gives the overall fibre content. A GOTS “made with organic” label adds the exact share of certified organic fibre.
- Match certificate to garment. A mill, a factory and a brand can each hold a different certificate. GOTS requires every company in the processing chain to be certified, OEKO-TEX covers the tested article and B Corp covers the company.
What certifications leave out
A certificate describes how a fibre was grown, how a fabric was processed or how a company operates. It says nothing about weave, weight, finish or stitching, so those still call for a look at the garment itself.
A missing logo proves nothing either way. It means only that no certificate was claimed for that product.
Certificates also expire and standards get revised. A label on an older piece may point to a scheme that has since changed, so the number is worth checking again at the time of purchase.
Why generic claims like “eco-friendly” are now restricted in the EU
Since 27 September 2026, Directive (EU) 2024/825 applies across the EU. It restricts generic environmental claims such as “eco-friendly” and “green” unless recognised excellent environmental performance backs them or the specific benefit is stated in the same message. It also restricts sustainability labels that are not based on a certification scheme or set by a public authority.
The directive was adopted on 28 February 2024. Baker McKenzie’s summary adds two more restricted practices: claims about a whole product when the benefit concerns only one aspect of it, and future environmental commitments without a verifiable plan.
For a shopper, the effect is practical. A stated fact, such as an organic cotton percentage with a certificate number, can be checked. An adjective cannot.
Natural-fibre pieces to explore at Fashion Roots
Knitwear is the easiest place to compare fibres. As of 8 October 2026, the women’s knitwear collection offers wool, cotton, silk and linen among its fabric filters, and the men’s knitwear collection offers wool, cashmere, cotton and linen. Filter by fibre, then read the composition details on each product page.
Explore sustainable collection
Wool, cotton, silk and linen, all in one place.
Clothing certifications explained by scope make a tag easier to read: ask what the logo certifies, find the number and check the composition beside it.
Key takeaways
- Each certification verifies one scope: fibre and farming, processing, finished-product chemistry or the company.
- A GOTS “organic” label means at least 95% certified organic fibre. “Made with organic” means 70% to 95%.
- OEKO-TEX STANDARD 100 tests the finished article for harmful substances, and B Corp certification assesses a company.
- Since 27 September 2026, generic claims such as “eco-friendly” are restricted in the EU unless recognised performance or a stated specific benefit backs them.
Frequently asked questions
Why does organic fibre not always mean a GOTS label?
Fibre from a certified organic farm is the first link in the chain. A GOTS label also requires every company that processes, manufactures or trades the product to hold GOTS certification. The Organic Content Standard verifies organic content and chain of custody without those added processing requirements, so a product can carry organic fibre credentials without a GOTS label.
Can a garment carry both GOTS and OEKO-TEX labels?
Yes, because the two schemes check different things. GOTS addresses organic fibre content and how the product was processed, while OEKO-TEX STANDARD 100 tests the finished article for harmful substances. Each logo has its own certificate number, so check both separately with the scheme owners before treating either as proof of the other.
How long does an OEKO-TEX STANDARD 100 certificate last?
OEKO-TEX issues a STANDARD 100 certificate for one year. The scheme also reviews its limit values for harmful substances at least once a year. For that reason, a label on a garment should match a current certificate, which you can confirm in the OEKO-TEX Label Check using the QR code or certificate number.
When does the Responsible Wool Standard change?
Textile Exchange is moving its standards into a single Materials Matter Standard. Its criteria were released on 12 December 2025. The standard becomes effective on 31 December 2026 and is mandatory from 31 December 2027, when eligible organisations must complete their next audit to it. The Organic Content Standard joins the same system through a gradual pathway still to be detailed.