Intense workouts will be a breeze in the Reebok Nano X4 training shoe. Crafted with Flexweave woven textile upper, this lace-up sneaker provides an ultralight experience. With a midfoot ventilation panel, you get to experience optimal airflow. A Lift and Run Chassis system offers top-notch stability and a Floatride Energy Foam cushioning keeps you afloat in every stride.