Description: The X version is all about extreme ball speed and extreme distance. The L4V X Drivers are designed for accomplished players who demand a neutral ball flight with low spin and high launch – so they can maximize distance and the shape of their shots. F Driver generates a high launch and a low-to-mid spin, along with a straight to slight draw-biased ball flight. M driver is speed tuned for moderate ball speeds to get the most out of every swing. Features a high-launch, mid-spin, draw-biased ball flight, optimizing distance for players who have a tendency to slice or fade. The M helps players keep the clubface square at impact – for long, forgiving and straight drives.