Coir door mats rely on processed coconut fibre. These fibres are stiff, coarse, and durable. They are designed to sit at access points. Foot traffic activates the cleaning action. Indoor surfaces stay cleaner for longer. From Coconut Husk to Entrance Mat The husk surrounding the coconut is the source material. https://trevorahjec.laowaiblog.com/38140185/an-introduction-to-coir-mats