Meet the latest generation of Acer woods loaded with many added features to improve the game of a wide range of players. First we focused on the face technology by offering a variable face thickness, cup-face design. While it is easy to provide for the maximum allowable performance on center shots, the difference of a premium club is the ability to provide near perfect results with less than perfect shots. The cup-face moves the welds away from the corners of the head to provide a thinner, more active face to maximize ball speed on the off-center shots. The variable face thickness further reduces the wall thickness around the perimeter of the impact area so the entire club face becomes a gigantic sweet spot. Now off-center or miss hits will launch the ball directly down the fairway like you perfectly struck the ball in the center of the face. The shape of the head was carefully selected to appeal to the eye of a wide range of golfers, yet improve stability by expanding the front-to back dimension. The center of gravity moves lower and further from the face to optimize launch conditions. The Acer XK Drivers are available in a multitude of loft angles to meet all your custom fitting needs.