Made from a combination of 2520D ballistic nylon and microfiber leather. The strong yet supple microfiber leather covers the important parts of the boot, around the fetlock, straps and strike guard. They incorporate Eva lining, which is water resistant and helps prevent the boots retaining water and becoming heavy on the horse's leg. Excellent protective horse boots for the cross country phase. The air passes in through the front vent and out by the side vents. The cold air allow to keep the tendons cool. Shaped to mould around the fetlock without impeding the natural action of a horse galloping or jumping. A strike guard runs down the back of the boot protecting the important tendons and ligaments from knocks and over reach injuries. 6 air vents allow a constant stream of air to pass through the boots whilst the horse is in action. Machine Washable.