With the Nike Lunaracer + running shoes you'll get such a responsive bounce, it will feel like cero gravity all the way to the finish line. These kicks are also Nike+ ready. This means that they come with a pocket underneath the sockliner specially designed to fit the Nike+ sports kit pedometer (Nike+ sensor not included). This pair of shoes features: Breathable mesh upper with synthetic overlays for strength and support. Reflective elements for enhanced visibility in low light. Traditional lacing system provides a tighter fit for more centralized support. Padded insole provides comfort and support. Midsole with LunarLite cushioning for miles and miles of soft, springy comfort. Flywire technology wraps the rearfoot and acts as a heel counter for lightweight stability. Phylon carrier adds responsive bounce, and its sidewall acts as a virtual medial post that helps moderate excessive pronation. BRS 1000 carbon rubber outsole offers traction and durability. Multiple Flex grooves in the outsole to allow the foot to flex naturally and roll through a step. Stay fast and light on your feet in the Lunaracer + running shoes from Nike.