Super lightweight sandwich mesh upper, Layered mesh for comfort and breathability, Side S logo detail, Synthetic heel panel with separated design, Lace up front, Well padded smooth heel collar and lining for added comfort, Ideal for treadmill running and workouts Sole designed for responsive traction and ground feel, Parametric midsole construction for support and stability, Weight: 8 oz. per shoe in a men's size 9, 1 1/4 inch heel 5GEN midsole material delivers comfort and response, Air Cooled Goga Mat insole provides shock absorption and support, Breathable sandwich mesh fabric and synthetic upper, Comfortable lightweight and well ventilated upper design Skechers GOrun 600 - Nile is a well-cushioned, lightweight trainer perfect for a variety of workouts in and out of the gym. The responsive 5GEN cushioning midsole and a breathable mesh upper offer an incredibly responsive workout shoe.