Coir mats are made from coconut husk fibres. Coconut fibre provides strong brushing action. The structure suits doorway placement. The mat surface scrapes dirt from footwear. This reduces the amount of debris entering a building. The Origin of Coir Mat Materials The husk surrounding the coconut is the source material. https://dominickfilhc.blogolenta.com/36111072/understanding-coir-entrance-mats