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Frequently asked questions
How we score
Fashion Sustainability Index
We share our criteria, data sources, and reasoning. The specific calculations are proprietary, but you can verify our approach through the sources we cite.
We review data quarterly and update when new research significantly affects a score. Each database entry shows its last update date.
Yes. Brands can submit updated sustainability reports or certifications for consideration. Requests are evaluated against our standard criteria—not influence.
We're building toward having every material in our database. If something's missing, it's likely coming. Priority goes to commonly used materials first.
No. We aggregate and assess publicly available information. For actual certification, brands should work with organisations like B-Corp or Fair Trade.
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