Upper : C.W.L. (organic cotton coated with a resin from P.U., corn starch and ricinus oil) Panels : C.W.L. Logo V : Amazonian rubber (26%) Insole : Amazonian rubber (12%), sugar cane (46%) and recycled polyester (23%) Midsole : Sugar cane (54%) Outsole : Amazonian rubber (31%) Cushion latex : L-Foam (30% natural latex) Lining : Tech (100% recycled polyester) Laces : Organic cotton (100%) Backloop : Recycled polyester (100%) Made in Brazil C.W.L.: Cotton Worked as Leather This material is a vegan alternative to leather, with a very similar appearance and excellent resistance. A 100% organic cotton canvas, coated with P.U., corn starch, and ricinus oil. 54% bio-based.