Its a supportive shoe disguised as a sleek road runner. And its here to help guide your feet in a straight line while delivering efficient, lightweight strides. We updated the Altra EGO MAX midsole compound, for a more cushioned yet lightweight underfoot feel. GuideRail technology encourages natural foot placement with gentle guidance on the medial side, but only when its needed. A redesigned engineered mesh upper and ghillie lacing system combine to improve breathability and fit. A premium molded heel collar, featuring soft detailing, offers comfort at first step-in. Its got a roomy toe box to help your toes move more freely with a secure midfoot and zero drop, so you can move naturally. Looking for a supportive, cushioned running shoe thats got your back (and your feet)? You found it.