Strong mesh leg wraps provide protection from flies, biting insects as well as UV protection for the lower leg of your horse. Binding is made of soft nylon that provides comfort while not collecting burrs and seeds. The large "quick grip" closure on the top makes for easy on/off. The two lower straps incorporate elastic so that the boot moves with your horse's movement. What makes this boot unique is the rolled neoprene located inside the boot just above the fetlock. This along with a flexible plastic spine located on the rear help ensure the boot stays upright and in its proper location.