Pigskin leather and mesh upper 100 percent recycled laces and webbing Bellows tongue keeps out debris Protective toe cap 100 percent recycled mesh lining Kinetic Fit ADVANCED removable contoured insole with reinforced heel cushioning for medium support Molded nylon arch shank Merrell Air Cushion in the heel absorbs shock and adds stability Lightweight EVA foam midsole for stability and comfort Vibram TC5+ rubber sole (7588)