【How-to】What is kodra fabric - Howto.org

Cordura is made by weaving together a specific type of nylon: nylon 66, which is made of two monomers, each containing 6 carbon atoms, hexamethylenediamine and adipic acid, hence the “66.” In this sense, nylon 66 is like a good, heavy chain: it is strong, durable, and made to last a lifetime.