The Venturi model is made from a combination of environmentally friendly and sustainable materials. Upper : Hexamesh (53% organic cotton and 47% recycled polyester) Panels : Hexamesh and suede Logo V : Amazonian rubber (26%) Insole : Amazonian rubber (12%), sugar cane (42%), recycled polyester (23%) and others (12%) L Foam : Natural latex (30%) Midsole : E.V.A* made from 38% sugar cane and 47% others Outsole : Amazonian rubber (31%), silica (31%), synthetic rubber (19%) and others (19%) Lining : Tech (100% recycled polyester) Laces : Organic cotton (100%) Backloop : Recycled polyester (100%) Made in Brazil. Hexamesh is a resistant fabric made from organic cotton and recycled polyester. The technology used for the weaving creates a flat fabric with a pattern that resembles knitting. The certified cotton we use is grown in Brazil and Peru, respecting people and the environment, and is the same cotton we use for our canvas. *ethylene vinyl acetate