These contour fly boots are made of heavy mesh for durability and easy cleaning. They feature a pliable yet rigid spine with a rolled neoprene “stopper” located inside the boot above the ankle. This “stopper” keeps the boot in the correct position even after pawing or moving about the stall or pasture. Seams inside the boot are lined with foam padding for comfort and to prevent rubbing. These boots are easily secured with a large “Quick Grip” strap on top and two lower straps with elastic that allow the boot to adjust with the movements of the horse. Sold as a set of 4.