G425 Max Driver In the G425 driver series, the primary model is named Max as it elevates the moment of inertia (MOI) to PING’s highest level in history and provide golfers the most forgiving driver in golf. Joining the G425 Max are the LST (Low Spin Technology) and SFT (Straight Flight Technology) to best match a golfer’s swing and launch conditions. MOI to the Max To achieve the new performance levels in the G425 Max, PING engineers combined key technologies from the G400 Max and G410 Plus. The resulting increase in MOI in the 460cc head comes mainly from a 26-gram tungsten movable weight, which is made possible by weight savings attributed to advancements in the driver’s dragonfly crown technology. The weight can be positioned at distinctive settings over a smaller area than G410 Plus/LST to help shift the center of gravity lower and farther back without sacrificing performance elsewhere in the design. The CG-shifting weight can be secured in one of three settings -- neutral, draw or fade -- to influence forgiveness and shot shape for maximum performance. The average MOI increase is 14% across the three weight positions compared to the G410 Plus, with three combinations of weight position and loft exceeding a combined MOI of 10,000 (gm-cm²). Speed Generator All the driver models benefit from a proprietary T9S+ forged face that generates accelerated face flexing and helps add distance. Dragonfly Refined Movable tungsten weights that vary by model are made possible by weight savings attributed to advancements in the drivers' Dragonfly crown technology Fast Design To help increase swing speed and ball velocity, all three models share proven PING driver innovations, including crown turbulators that reduce aerodynamic drag. Internal Ribbing An internal rib structure in the Ti-8-1-1 body improves acoustics for a solid and pleasing sound. Adjustable Hosel The adjustable hosel provides eight positions for golfers to tune their trajectories through loft (+/- 1.5 degree) and lie adjustments Arccos Caddie Smart Grip Program The Arccos Caddie Smart Grip (Golf Pride Lite 360 Tour Velvet) in one of four sizes (Red -1/32”, Aqua -1/64”, White/Std, and Gold +1/32”) is the standard grip on all G425 clubs. Golfers who purchase a set of six or more G425 irons in one transaction are entitled to eight free Arccos Screw-In sensors and a 90-day free trial of the Arccos Caddie App. Golfers who purchase one or more G425 driver, fairway wood, hybrid, iron (up to five) or Crossover are eligible for 14 free Arccos Screw-In sensors and the 90-day app free trial for a shipping and handling fee.