SDU REC dark white natural en flanelle, suède vegan et caoutchouc sauvage Upper in flannel : made out of recycled cotton (59%) and recycled polyester (41%) - Synthetic leather panels from Germany - Logo V made of wild rubber - Lining in recycled cotton - Insole made out of wild rubber and other synthetic materials - Sole made of wild rubber from the amazonian forest (25%) - , in the region of Porto Alegre