A garment tag might carry any of a dozen different sustainability marks, and shoppers commonly assume they all certify roughly the same thing: that the product is broadly better for the environment or for workers. In practice, each scheme has a narrow, specific scope, and comparing across them requires knowing what each one measures.
Fibre and material standards
The Global Organic Textile Standard (GOTS) certifies that textiles contain a minimum proportion of certified organic natural fibres and restricts certain chemical inputs across processing, with independent third-party auditing along the supply chain. The Organic Content Standard verifies the presence and chain of custody of organic material without GOTS's broader environmental and social processing criteria. Neither certifies factory labour conditions independently of the materials chain they cover.
Chemical safety standards
OEKO-TEX Standard 100 tests finished textile products for a defined list of substances considered harmful to health, based on limit values that in some cases go beyond legal requirements. It certifies chemical safety of the finished product rather than the environmental impact of how it was produced or the conditions under which it was made.
Social and labour standards
Fair Trade certification schemes focus primarily on labour conditions, wages and, in some versions, community development funds tied to production, verified through independent auditing of specific facilities or cooperatives. This is a distinct axis from material sourcing; a Fair Trade-certified garment is not automatically made from organic or recycled fibre, and a GOTS-certified garment is not automatically Fair Trade audited.
How to read overlapping claims
A single garment can legitimately carry a materials certification and a separate labour certification simultaneously, because they audit different parts of the supply chain. Treat each mark as answering one specific question rather than a general verdict on sustainability.
Recycled content claims
The Global Recycled Standard and similar schemes verify the percentage of recycled material in a product and trace its chain of custody back to the recycling source, again through third-party auditing. This addresses material origin, not the durability or eventual end-of-life recyclability of the finished garment, which are separate questions the certification does not answer.
Regulatory versus voluntary schemes
- Government-run ecolabels, such as the EU Ecolabel, are administered by public authorities and set criteria across a product's life cycle for a defined category.
- Industry-run voluntary certifications are administered by non-governmental standard-setting bodies and vary in the rigour and independence of their auditing.
- Self-declared claims made directly by a brand, without third-party verification, carry the least independent assurance and are the category most likely to constitute unsubstantiated marketing.
A practical way to compare labels
- Identify what the specific mark verifies — material content, chemical safety, or labour conditions — rather than assuming it covers all three.
- Check whether the scheme uses independent third-party auditing, which most credible certifications disclose openly on their own websites.
- Treat a brand's own unaudited sustainability claim with more caution than a named, auditable certification.
- Compare like with like: a chemical-safety mark and a labour-standards mark are not competing claims about the same thing.
A green label answers one specific question. The mistake is assuming it answers all of them.
