The "Grüne Knopf"

(The green button)

The official certification for sustainably produced textiles turns two years old.


by mey 09/09/2021

Certification seal of the “Grüne Knopf” | mey®

Our symbol for responsibility

The “Grüne Knopf” (“Green Button”) is an official certification for sustainably produced textiles. Shoppers who are looking for clothing that is produced in a socially and environmentally responsible way should look for the Green Button. It is attached directly to the product, so it’s easy for shoppers to find – reliable and user-friendly.


Guidance for shoppers

Three quarters of consumers say that sustainable fashion is important to them. They rightly would not want to wear a T-shirt that was made by sweatshop workers working 16-hour shifts for a poverty wage, or that was dyed using toxic chemicals. The “Grüne Knopf” shows that sustainable fashion is possible!


Official certification generates trust

The “Grüne Knopf” is the first certification of its kind. It requires companies to protect human rights and the environment. In total, it contains 46 strict social and environmental standards – ranging from restrictions on wastewater limit values to prevention of forced labour.

“The ‘Grüne Knopf’ provides shoppers with clear guidance. I’m pleased that Mey GmbH & Co. KG is on board with the official certification. By doing so, the brand has set the agenda for corporate responsibility. Especially during the COVID crisis, this is more important than ever.”

Dr. Gerd Müller, Federal Minister of Economic Cooperation and Development


The Grüne Knopf icon “Socially” | mey®

Social –
Good for people

The “Grüne Knopf” sets strict criteria for humane working conditions – from payment of the minimum wage, to compliance with working hours and prevention of child labour or slavery.

The Grüne Knopf icon “Ecologically” | mey®

Ecological –
Good for the environment

Good for the environment
The “Grüne Knopf” prohibits the use of hazardous chemicals and plasticisers, and sets limit values for waste water in production.

The Grüne Knopf icon “Officially” | mey®

Official –
Generating trust

The German government defines the criteria and conditions for the “Grüne Knopf” – ensuring clarity and trustworthiness.

The Grüne Knopf icon “Independently certified” | mey®

Independently certified –
Independent review

Independent review centres monitor compliance with the criteria. As the “tester of testers”, the Deutsche Akkreditierungsstelle (German Accreditation Body, or DAkkS) ensures an independent and credible assessment.