The Merrell Women's WildWood Aerosport Shoe is a vented shoe for the High heat of summer on the trail. Merrell Air Cushion at the heel with a lightweight EVA foam Midsole combine for shock absorption and stability. Sticky rubber offers the traction necessary on the hike and a molded nylon arch shank offers strength. A super easy cord and lock lace system makes these quick to put on in the morning and simple to kick off after a long day exploring. Features of the Merrell Women'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