Coir mats are made from coconut husk fibres. The material has a naturally rough texture. The structure suits doorway placement. Shoes passing over the fibres release soil. Indoor surfaces stay cleaner for longer. How Coir Fibre Is Produced Coconut shells provide the raw fibre. The material is treated before shaping. https://andyjdtvj.bloguerosa.com/37858787/understanding-coir-entrance-mats