After twenty years of development, the TaylorMade Stealth Driver unveils a new technology that buries the era of titanium faces. This revolutionary design, known as 60X Carbon Twist Face, is comprised of sixty layers of carbon fiber which have been strategically engineered to optimize energy transfer and deliver explosive ball speeds. Not only is 60X Carbon Twist Face 44% lighter than an equivalent titanium face, it is also 11% larger than SIM2 and SIM2 Max drivers, and nearly 20% larger than the original SIM driver. As a result, the face is not only faster, but extremely forgiving, and capable of delivering tremendous speed across a larger area of the face.