The Insight XTD a3OS is perfect for a slower swing speed player who wants extra distance as well as the golfer who is trying to eliminate a slice to gain those extra yards. Designed to achieve optimal launch conditions and maximum ball velocity for slower swing speeds. Center of Gravity (CG) is positioned low and toward the heel to help close the face at impact for greater distance. Innovative Boxer Technology pushes mass away from the face and into the corners for high MOI. Features the newest in high-performance shafts - the Aldila DVS 55-gram graphite shaft