Callaway's lightest and easiest-to-swing Quantum hybrid, the Max Fast, is engineered to help slow-to-moderate swing-speed players maximize clubhead speed, launch angle, and carry distance. Two sole upgrades highlight the Quantum hybrid lineup, beginning with Speed Wave 2.0. Like its predecessor, Speed Wave 2.0 enhances ball speed and launch consistency by positioning tungsten weight low and forward in the head. However, the new design also allows greater face flex, increasing energy transfer and speed, especially on low-face strikes. The second refinement to Callaway's flagship hybrid lineup is the new and improved Step Sole. In addition to reducing turf interaction for cleaner, more efficient strikes, the latest design's reshaped heel enhances stability through impact, ensuring greater control and accuracy off the turf. Callaway Quantum Max Fast Hybrids Features: Ultra-forgiving, lightweight build, with a shallow face profile, helps boost clubhead speed, launch it higher, and maximize carry with less effort Speed Wave 2.0 positions tungsten low and forward for faster ball speed and a high, consistent launch. The new design allows for additional face flex, boosting energy transfer for faster speeds, especially on low-face strikes New Step Sole Design reduces turf interaction for consistent center-face contact. A reshaped heel adds stability at impact, helping to keep the face square for greater control Next Generation Ai-Optimized Face Design optimizes speed, spin, launch, and accuracy across the face using advanced Ai modeling Heel-toe weighting increases stability, promoting straighter, more accurate shots OptiFit4 Hosel features independent loft (up to +1�/-1�) and lie (up to +/- 2�) adjustability, offering 7 configurations to fine-tune launch angle and shot shape Stock Shafts: Mitsubishi Vanquish PL Stock Grip: Lamkin Crossline 360 Lite Headcover Included Authorized Callaway Retailer Specifications Club Loft Lie Length Volume Availability 4H 22� 59.375� 40.