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. The Origin of Coir Mat Materials Coconut shells provide the raw fibre. https://antifatiguemat07268.dm-blog.com/39490111/what-defines-a-coir-door-mat