PARIS — On Friday, François-Henri Pinault, the chief executive of Kering, plans to unveil details of a Fashion Pact that he is to present to world leaders at the Group of 7 summit this weekend.

The agreement outlines group commitments focused on climate, biodiversity and oceans. It defines itself as “a set of guidelines” and will not be legally binding. The 32 signatories, which include high-end brands like Chanel, Prada and Hermès; athletic apparel names like Nike and Adidas; as well as fast fashion retailers like the H & M Group and Inditex, the parent company of Zara, say they will implement proposed changes to their own operations. No punitive measures will be imposed should they fall short of targets.

“The global challenges we are facing are complex,” Mr. Pinault wrote in an email on Thursday. “They know no borders. Only coalitions can overcome them, bringing together governments, businesses and civil societies.”

He went on: “This Fashion Pact is about saying: We have acknowledged the 21st century’s environmental issues, and we are taking our responsibility through collective action and common objectives.”