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. This reduces the amount of debris entering a building. How Coir Fibre Is Produced Coir fibre comes from the outer shell of coconuts. https://travisxsgyl.theblogfairy.com/38380217/an-introduction-to-coir-mats