1The large size is big enough to cover the entire leg of horse, and the Oxford cloth keeps the boots cold for longer. 24 elastic extended hook straps determine the amount of compression applied to the leg, keep ice pack in place. 3Relieves leg pain and cools horse's legs, great for treating arthritic joints, leg knee arm pain and helpful for sprains strains and swelling from sports injuries. 4Keep soft when cooling, get inside nylon ice bag is double sealed, no leaking, reusable to use on your shoulder, back, calf, shin, thigh and more. 5Ice boots are easy to apply hot and cold therapy, just throw it in the freezer overnight or microwave it to the desired temperature.