The EVA contoured midsole, molded outsole, and comfort topline all come alongside one another to create one of the most comfortable rubber boots that you will find. The calf-high rubber overlay protects the bottom A part of your leg in addition to your feet, retaining you dry and warm. WillSLV https://bbs.pku.edu.cn/v2/jump-to.php?url=https://en.wikipedia.org/wiki/Comfort