Natural coir mats use fibres taken from coconut shells. These fibres are stiff, coarse, and durable. They are designed to sit at access points. Foot traffic activates the cleaning action. Less dirt reaches internal floors. From Coconut Husk to Entrance Mat Coir fibre comes from the outer shell of coconuts. https://beaurpkev.anchor-blog.com/19537977/understanding-coir-entrance-mats