MAINFRAME Created with human intelligence yet perfected by the artificial kind, MainFrame is a one-of-a-kind face design that increases ball speed on every shot. While our engineers set the parameters, our computers ran the simulations—thousands of them—until we had our fastest irons yet.

MULTI-PIECE CONSTRUCTION Premium, high-density tungsten in ZX5’s long and mid irons maximizes heel-toe MOI. That added stability is invaluable on off-center shots because it helps keep spin and speed consistent. A forged SUP10 face is strong and light, increasing face-flex at impact for enhanced speed and distance. And a forged 1020 Carbon Steel body absorbs vibrations for softer feel.

TOUR V.T SOLE The unique Tour V.T. Sole gives Srixon irons a leg up against the competition with smoother turf interaction and improved impact feel. The V-shaped sole glides smoothly through turf, even if you strike slightly behind the ball.