Wolverine debuts an innovative new comfort technology in the Wolverine Cabor boot: Wolverine EPX. Wolverine EPX brings comfort closer to the foot to return energy and fight fatigue all day long. Made from dual layer foam, EPX starts with a dense base that distributes weight evenly across a sturdy foundation. The honeycomb heel pattern expands to absorb impact, and a ribbed spine in the forefoot flexes through each step to maintain cushioning. A compression molded EVA top layer cushions from heel to toe.