The light weight semi hard PVC outer shell makes this ankle boot durable and tough enough to protect the fetlock area. Between the Neoprene lining and outer part of the boot is a layer of gel that helps to absorb the shock. A 2 inch wide elastic Nylon with hook and loop strap help hold the ankle boot in place. This boot is recommended for horses the tend to brush their ankles against one another while in motion. Available in Black only.