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://rowanbysmh.blogtov.com/20183709/what-defines-a-coir-door-mat