A good half of the upper material of this vegan sneaker is made from recycled polyester from the Ecoalf ocean project, as well as soft and stretchy Sorona® polymer fibers, a good third of which are made from renewable plant-based raw materials. The lining and removable insole are made of polyester. The midsole is made of EVA and 18 percent algae. The latter comes from freshwater rivers, where it is harmful to the environment. Here, however, they can be used beneficially and thus reduce the proportion of petroleum-based materials. The EVA outsole provides good grip on almost any surface.