Coir mats are made from coconut husk fibres. These fibres are stiff, coarse, and durable. The structure suits doorway placement. Foot traffic activates the cleaning action. This reduces the amount of debris entering a building. From Coconut Husk to Entrance Mat Coir fibre comes from the outer shell of coconuts. https://claytonbkuxh.tinyblogging.com/an-introduction-to-coir-mats-83132473