Callaway have gone in a totally new direction with the clubhead design in their new Epic Flash range. Their Epic Flash Sub Zero driver benefits from the new Flash Face technology developed by Callaway. This has been created using Artificial Intelligence and through machine learning, this club face has evolved to this unique subtle ripple finished design. This increases ball speed at impact which allows for a longer carry and therefore greater distances from the tee. The face is forged from a special Titanium. This is heat treated for an extended period of time which produces an extremely strong and flexible face design for speed.