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The index › the United States › Sustainable clothing › Buying question

Where is the best place to buy sustainable clothing online in the US?

We asked ChatGPT and Gemini this exact question in October 2026, as a shopper in the United States would. These are the stores they named, most named first.

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The stores AI named

  1. Made Trade
  2. Pact
  3. Patagonia
  4. ThredUp
  5. Eileen Fisher Renew
  6. Girlfriend Collective
  7. EarthHero
  8. MATE the Label
  9. Reformation
  10. Amour Vert
  11. Eileen Fisher
  12. ThredUP
  13. Patagonia Worn Wear
  14. Arc’teryx ReGEAR

From our monthly measurement for sustainable clothing in the United States. Marketplaces and platforms are left out. AI answers change; this is a snapshot, not an endorsement. How we measure.

See the full ranking for sustainable clothing ›

Other questions shoppers ask

Is AI sending these shoppers to someone else?

See the buying questions where AI names another store instead of yours, and what to change. Free, no account.

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