Coir mats are made from coconut husk fibres. These fibres are stiff, coarse, and durable. This makes coir mats suitable for entrance use. Shoes passing over the fibres release soil. Less dirt reaches internal floors. The Origin of Coir Mat Materials The husk surrounding the coconut is the source material. https://martinxxxto.amoblog.com/an-introduction-to-coir-mats-61207877