Upper material: Alveomesh (100 % recycled polyester) Panels: Ante and Cuerolgotype of the V: rubber and rice residues (22 %) Template: Rubber of the Amazon, sugar cane, E.V.A.* Recycled and organic cotton between: sugar cane (52 %) Exterior sole: Amazon Rub . This provides breathability, flexibility and lightness to the shoe. It is made from the bottom of the beef skin previously brushed to make it softer and more flexible. It comes from farms from southern Brazil (Rio Grande do Sul). It is tanned in Brazil, respecting Reach standards. Special attention is paid to the use of water during the tanning process. The suede is also covered with hydrophic oils without PFC (chemical compounds) to protect light rain shoes.-Sinthetic