Coir door mats rely on processed coconut fibre. The material has a naturally rough texture. The structure suits doorway placement. Shoes passing over the fibres release soil. This reduces the amount of debris entering a building. How Coir Fibre Is Produced The husk surrounding the coconut is the source material. https://jaredvwvsn.aboutyoublog.com/48769357/understanding-coir-entrance-mats