Natural coir mats are made using coarse coconut fibres. These fibres are cleaned, dried, and pressed into matting. The finished mat has a rough texture. The fibre texture scrapes mud and debris from shoes. They are often used in doorways and porches. They suit both indoor and sheltered outdoor areas. https://antifatiguemats72481.uzblog.net/understanding-coir-door-mats-53095205