Grüner Knopf is a German state-backed seal for sustainable textiles. It helps consumers identify products made under social and environmental standards, while recognizing companies that take responsibility for conditions across their supply chains. To qualify, companies must demonstrate that they meet requirements for human rights and environmental due diligence and monitor their production processes. Products must also be shown, through recognized certifications, to have been made in socially and environmentally responsible ways. Independent auditing bodies check compliance with the seal’s criteria, which are established by the German state to provide clarity and build trust.

Grüner Knopf also supports informed and more sustainable choices through consumer information, guidance on responsible consumption, and educational materials for children and young people. For businesses and public procurement professionals, the initiative provides information on certification, criteria, and more sustainable purchasing. Its website offers updates, interviews, events, resources, and FAQs, and invites companies to have eligible products certified. The seal’s work brings together social responsibility, environmental protection, and transparent oversight in textile production.