Cleveland Golf Men's 588 Altitude Driver Ultralite Technology Achieve more club head speed and distance with the same swing effort; A lightweight head, shaft and grip combine to weigh 270 grams and traditional swing weight is maintained for more control throughout the swing Largest Sweet Spot Our latest enhanced variable face thickness technology creates the hottest flight on center strikes and even faster ball speed on off-center hits for maximum forgiveness Premium Matrix Radix Shaft This lightweight shaft is designed for a mid-high launch with smooth feel and explosive speed; Made by Matrix, one of the fastest growing shaft brands on tour