Cobra Darkspeed X is designed for those who want both high ball speed and a forgiving driver. The aerodynamics have been developed with a narrower/higher face and rounder edges to give you more speed with the club. The face, PWRSHELL HOT FACE, goes under the sole to allow for more flex on low shots to maintain length on thin shots. The back of the face has been designed using AI to keep spin and ball speed as constant as possible when hitting outside the sweet spot.