Callaway worked with the aerodynamics experts at Boeing to reach a completely new threshold of ball speed. They made this a high head speed design with low drag, and did it by pinpointing the size and placement of their re-engineered Speed Step Crown to save weight and add more ball speed. That's how XR 16 sets the standard in aerodynamics for fast speed and more distance.
The new Big Bertha Alpha 816 Double Black Diamond Driver is built for the best players, the studs, the big bombers, the ones who stripe it off the tee like clockwork. Extreme Distance For Expert Players
The Callaway XR OS Hybrids are designed to be extremely forgiving and combined with a high launch, and with the industry-leading Forged Hyper Speed Face Cup for distance they’re designed to perfectly complement the XR OS Irons.