Waterproof membrane seals out water and lets moisture escape. Waterproof full grain leather upper. Metal hook traditional lace closure. Breathable mesh lining. Kinetic Fit™ BASE removable contoured insole for flexible support. Merrell Air Cushion in the heel absorbs shock and adds stability. Lightweight EVA foam midsole. Merrell sticky rubber outsole with durable traction that grips when and where you need it.