Natural coir mats use fibres taken from coconut shells. These fibres are stiff, coarse, and durable. The structure suits doorway placement. Foot traffic activates the cleaning action. Indoor surfaces stay cleaner for longer. How Coir Fibre Is Produced Coconut shells provide the raw fibre. The material is treated before shaping. https://coir-entrance-mat14321.activablog.com/38244137/understanding-coir-entrance-mats