The Merrell Men's WildWood Aerosport Shoe is a breathable shoe for the trail. Run like the wind and air will flow freely through the mesh Upper while the synthetic leather overlays offer durability against trail debris. The elastic cord and lock lace system makes them easy to secure when moving fast and quickly relaxes the Fit when you're slowing to a walking cooldown back into camp. The EVA foam Midsole is lightweight and supportive while a sticky rubber Outsole from Merrell drives traction. Features of the Merrell Men's WildWood Aerosport Shoe Synthetic leather and mesh Upper Elastic cord and lock lacing system for quick secure Fit 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