Suede leather and nylon upper Traditional lace closure Bellows tongue keeps out debris Protective toe cap Breathable mesh lining Kinetic Fit BASE removable contoured insole for flexible support Merrell Air Cushion in the heel absorbs shock and adds stability Molded nylon arch shank Lightweight EVA foam midsole for stability and comfort Merrell sticky rubber outsole tunes each outsole with durable traction that grips when and where you need it