Bad design unusable
"Only use this product if you have a healthy foot - it is impossible to get it off if you have swollen, tender or torn achilles or peroneous brevis tendons, as it is so tight you will cause further harm and injury to the affected area. The sizing chart takes into account only your ankle measurement, and not heel or midfoot circumference, so there isn’t enough allowance to allow for removal. (I had to cut it off. )"