This groundbreaking blend of running shoe cushioning and versatile trekking upper signals a category-defining outdoor boot. Vibram Megagrip outsole rubber under our midsole blend of EVA and rubberized EVA material offers tremendous traction and cushioning. The Meta-Rocker in the midsole encourages a smooth ride, guiding your foot from sure step to sure step. That assured base is topped by an ultra-premium combination of leather and tough nylon that gives support around the foot, and eVent waterproofing keeps your feet dry.