Details: The Alveomesh is a technical fabric made out exclusively of recycled polyester. It brings breathability, flexibility and lightness to the shoe. The J-Mesh is made from 33% jute and 67% cotton. It is a resistant fabric, offering antistatic, thermoregulatory, and breathable properties. Made In Brazil Fit: Unisex. Runs small. Order one size larger than your usual size. Product Content: Alveomesh Upper: Alveomesh (100% recycled polyester) Panels: Suede and Leather Insole: Amazonian rubber (10%), bio-based E.V.A. (42%, including 33% sugar cane), recycled E.V.A. (12%), organic cotton (11%) and others (25%) Midsole: Bio-based E.V.A. (69%, including 39% sugar cane), recycled E.V.A. (8%) and others (23%) Outsole: Amazonian rubber (28%), mineral silica (28%), synthetic rubber (28%) and others (16%) Lining: Recycled polyester (100%) Laces: Organic cotton (100%) J-Mesh Upper: J-Mesh (67% recycled cotton and 33% jute) Panels: Suede and Organic Traced leather (O.T.) Insole: Amazonian rubber (10%), bio-based E.V.A. (42%, including 33% sugar cane), recycled E.V.A. (12%), organic cotton (11%) and others (25%) Midsole: Bio-based E.V.A. (69%, including 39% sugar cane), recycled E.V.A. (8%) and others (23%) Outsole: Amazonian rubber (28%), mineral silica (28%), synthetic rubber (28%) and others (16%) Lining: Recycled polyester (100%) Laces: Organic cotton (100%)