Remember to measure for the perfect fit. Keep flies from bothering your four-legged buddy with Kensington Protective Products Protective Horse Fly Boots. These fly boots for horses feature a unique， plastic stay built under the fleece trim to help keep them upright while protecting your pal’s legs. They are equipped with three hook-and-loop closures so that they stay securely on your steed. These horse fly boots are crafted using high denier textilene material and come in pairs of two.