The EVA contoured midsole, molded outsole, and comfort topline all come jointly to create among the most comfortable rubber boots that you will find. The calf-high rubber overlay protects the bottom part of your leg in addition to your feet, preserving you dry and warm. [thirteen] From the late 1990s https://wikimapia.org/external_link?url=https://en.wikipedia.org/wiki/Comfort