the heel tab and collar of the old style would not last half the life of the shoe and was a constant bother because it would tear up and expose the hard liner. stretch it smooths out all wrinkles. since every original bit of information, you share with your leads and customers is your resource, it’s important to reuse those materials from time to time. it contains natural vitamins and minerals. with features that alert you in case of signal loss, low battery, and high sound levels. and so it was, we all returned safely, and in great spirits. 