A plush, light, and soft midsole combines with an intensely grippy Vibram® outsole for a shoe that’s designed to go the distance. All terrain. All day. The Olympus 7 is crafted with an updated Altra EGO™ MAX midsole foam that’s 15% lighter and 10% softer than the previous version to keep you feeling fresh, mile after mile. With a Vibram® Megagrip outsole with TractionLug™, you’ve got fierce grip with adaptative traction and stability on wet or dry terrain