In 2021, PUMA created 500 pairs of the experimental RE:SUEDE, using Zeology tanned suede, a TPE outsole and hemp fibres. The RE:SUEDEs were worn for half a year by volunteers in Germany to test the comfort and durability of the shoes before PUMA sent them to a specially equipped industrial composting area operated by its partner Ortessa Group in the Netherlands. A special procedure had to be established to turn the shoes into compost. First, they were shredded and mixed with other green h...