Updated for even lighter steps, this sneaker made with a cool, sustainably sourced mesh upper and cushioned with a springy sole made with sugarcane-based foam. Cushioning: absorbs impact and distributes weight for consistent, buoyant comfort under each step Removable SweetFoam?insole FSC Tencel?lyocell and textile upper/merino wool and Tencel lyocell lining/SweetFoam EVA sole Tencel lyocell is a sustainably produced fiber made with closed-loop processing Imported Forest Stewardship Council?(FSC) certified, ensuring forest management that preserves biological diversity and benefits the lives of local people and workers This product meets Nordstrom Sustainably Sourced Materials criteria: contains at least 30% sustainably sourced materials