Coir mats are made from coconut husk fibres. Coconut fibre provides strong brushing action. The structure suits doorway placement. Shoes passing over the fibres release soil. Indoor surfaces stay cleaner for longer. From Coconut Husk to Entrance Mat Coconut shells provide the raw fibre. The material is treated before shaping. https://coir-mats39493.anchor-blog.com/19583378/understanding-coir-entrance-mats