Engineered to provide protection from calf strains and achilles tendon injuries the sorbothane shockstopper heel pad provide extra cushioning shock absorption and lift to the heel region by simply placing the pad on top of your existing insole this helps to alleviate the stress placed on your legs as your heel strikes the ground so just how exactly does such a small piece of padding help reduce injury risks to your calf and achilles well sorbothane is a unique synthetic material which mim