Coir door mats rely on processed coconut fibre. The material has a naturally rough texture. They are designed to sit at access points. Foot traffic activates the cleaning action. This reduces the amount of debris entering a building. How Coir Fibre Is Produced Coir fibre comes from the outer shell https://claytonbkuxh.tinyblogging.com/an-introduction-to-coir-mats-83132473