Equilibrium Magnetic Hind & Hock Chaps Size:XL to ensure they stay lightweight ART 10062370 XXL to ensure they stay lightweight even when wet Sweet iron as it rusts The unique design of the Magnetic Hind & Hock Boots not only allows you to put magnets anywhere from the coronet band up to and including the hock joint but also ensures that your horse can comfortably wear them overnight without fear of them slipping down the leg The ergonomic shape combined with the soft inner lining ensures a comfortable fit for your horse which is extremely important as the chaps are designed to be left on overnight and or for substantial periods of time