Blending Callaway's largest and most forgiving Quantum head shape with the company's premier speed and performance technologies, the super game-improvement Max OS is engineered to maximize speed and launch conditions for golfers who struggle with consistency or those with a lower ball flight.

The technology backing the performance-packed Max OS begins with its 360° Undercut Cavity, including an advanced two-piece construction with extreme perimeter weighting and a fully exposed undercut. By positioning mass at the edges of the clubhead, the perimeter weighting generates exceptional stability. At the same time, the undercut allows for a faster, more flexible face, delivering extraordinary speed, forgiveness, and launch across the hitting surface.

The super game-improvement category is full of speed, launch, and forgiveness-focused offerings. Yet, unlike most of its competition, the Max OS mimics the soft, rewarding impact sensation typically reserved for forged irons, thanks to Callaway's proprietary Urethane Microspheres. 

The final element in Callaway's Max OS formula is its re-engineered Tri-Sole design. From long irons to wedges, the sole's updated progressive shaping ensures a smooth entry and exit through the turf, promoting consistent contact in all course conditions.

Callaway Quantum Max OS Irons Feature:

• Oversized head shape with a thicker topline, longer blade length, and a wider sole for maximum forgiveness and launch
• Modern 360° Undercut Cavity delivers faster ball speeds, a higher launch, and more forgiveness across the face
• Next Generation Ai-Optimized Face design intelligently shapes the face to enhance speed, expand the sweet spot, and promote more consistent launch, spin, and dispersion
• Progressive Tri-Sole Design promotes smooth turf interaction for cleaner, more consistent contact across the set, even on heavy strikes
• Urethane Microspheres enhance sound and feel at impact by absorbing unwanted vibration, delivering a softer, forged-like sensation in a high-speed game-improvement head
• Stock Graphite Shaft: Project X Denali Silver 60
• Stock Grip: Lamkin Crossline 360