Nike Golf Left Handed Vapor Speed Irons 4-PW /AW Regular Flex Graphite (Left Handed) Modern Muscle geometry balances the CG in the center of the face for maximum ball speed, the highest stability, and the purest feel Ultra-fast Spring Steel faces and lightweight, high launch shafts amplify ball speed to the highest level FlyBeam reinforced hollow cavity long irons (4, 5, 6, 7) maximize energy return and off-center stability RZN cavity short irons (8, 9, PW, AW) combine stability with refined feedback Low and deep weighted for a high-flying, far-reaching trajectory