The New XXIO X driver is built with three key technologies which include a larger COR area on the face, a lightweight design optimized for slower swingers, and a lightweight "smart impact" shaft that helps encourage center contact for faster ball speed and more distance. XXIO expanded the high COR area of the face and optimized it specifically for your impact pattern resulting in more ball speed and more distance. The XXIO X is constructed with lightweight materials allowing you to get more acceleration and speed. The new MP1000 shaft is extremely lightweight, and engineered to reduce the forces on your body during your swing so you increase your consistency and hit the center of the face more often. Headcover included. Standard XXIO warranty applies. Satisfaction is guaranteed.