Rogue ST MAX OS irons are Callaway’s fastest irons ever. They’re built with wide soles, enhanced offset, and a thicker topline vs. This provides confidence, high launch, and forgiveness for mid-to-high handicap players. For the first time in the industry, they’ve combined high strength 450 steel with our A.I. designed Flash Face Cup. This delivers more ball speed and better ball speed consistency. They’ve applied our new A.I. Face Optimization to Rogue ST MAX OS. It’s unique for each model and loft to create spin rate consistency across the face. This delivers high launch and COR plus a more controlled landing angle to help hold greens. Their new precision tungsten weighting features up to 49g of high-density tungsten, a 188% increase over MAVRIK. It provides improved launch conditions and maximizes speed across the face. Callaway’s patented urethane microspheres are now pushed further up the face in Rogue ST irons (up to the 6th groove) to enhance sound and deliver pure feel while maintaining fast ball speeds.