Shopping for sustainable fashion shouldn't require a PhD. With hundreds of eco-labels out there, how do you know what's real and what's greenwashing?
For years there was no official rulebook for sustainability claims, so independent certifications stepped in to fill the gap (though the EU’s Green Claims and Empowering Consumers rules are now starting to police vague “eco” labels too). Think of these certifications as report cards: some grade materials, others grade worker treatment, and a few cover the whole supply chain. Here’s what the main ones actually mean.
Comprehensive Certifications
B Corp (B Lab) – Certifies businesses that balance profit with purpose, treating the planet and people as stakeholders. There are now more than 8,000 certified B Corps worldwide.
Textile Exchange – Owns the widely used material standards: recycled content (RCS and GRS), organic content (OCS), and animal welfare (Responsible Down and Responsible Wool). Independent bodies such as NSF audit and certify against them.
Sustainable Apparel Coalition – Created the Higg Index (now run under the “Worldly” platform) to measure environmental and social impacts across supply chains.
Environmental Standards
Better Cotton Initiative (BCI) - World's largest cotton program training farmers on water use, soil health, and fair labor.
Bluesign - Ensures sustainable manufacturing processes for people, environment, and resources.
OEKO-TEX - Tests textiles for harmful substances. MADE IN GREEN adds sustainable working conditions.
Cradle to Cradle (C2C) - Gold standard for safe, circular products covering material health to social fairness.
Organic & Natural Fibers
GOTS (Global Organic Textile Standard) - The gold standard for organic textiles, certifying the entire supply chain.
OCS (Organic Content Standard) – Verifies organic material content and tracks it through the supply chain (OCS Blended covers 5–94%, OCS 100 covers 95–100%).
Regenerative Organic Certified (ROC) - Highest standards for soil health, animal welfare, and farmworker fairness.
Animal Welfare
PETA-Approved Vegan - Completely cruelty-free products.
Fur Free Retailer - Transparent fur-free policies.
Leather Working Group (LWG) - Audits leather manufacturing for environmental practices.
Worker Rights & Fair Trade
Fair Wear Foundation (FWF) - Focuses on garment workers doing cutting, sewing, and trimming.
Fairtrade International - Ensures fair terms for farmers, protects workers' rights, builds sustainable livelihoods.
SA8000 - World's leading social certification for decent work and fair workplaces.
WRAP (Worldwide Responsible Accredited Production) – One of the largest independent certifications for supply-chain integrity and social compliance in apparel factories. (Not to be confused with the UK’s WRAP sustainability charity.)
Recycling & Circularity
Global Recycled Standard (GRS) - Certifies recycled content with social and environmental criteria.
Key Resources
Good On You - Rates brands on ethics and sustainability.
Fashion for Good - Industry platform promoting good materials, economy, energy, water, and lives.
Clean Clothes Campaign - Global network fighting for better garment factory conditions.
What This Means for You
No single certification covers everything. Focus on what matters to you—organic materials, worker welfare, recycled content, or animal rights—and look for those specific labels.
Certifications aren't perfect, but they provide third-party verification instead of just taking brands at their word. That's worth something.