Apex 21 is a high-tech, high-performance hybrid that blends exceptional ball speed with Callaway's new Jailbreak A.I. Velocity Blades. In addition to all that speed, Callaway has engineered exceptional ball flight control and adjustability into a stunning players shape. This is a versatile, high performance hybrid that can help a wide range of golfers. New Jailbreak A.I. Velocity Blades are engineered to increase vertical stiffness near the sole of the club, creating more speed low on the face where players often mishit their hybrids. These blades allow the Face Cup to flex on the crown to promote better spin rate consistency, and the bars are spread to enhance torsional stiffness, leading to more forgiveness all across the face. Every model and every face in the Apex Hybrids are uniquely designed using advanced A.I. This proven ball speed design puts an even greater emphasis on center and off-center ball speeds. If you would like to customize the shafts, grips, lengths or lies give us a call or send an email to Tom@dallasgolf.com. Standard Callaway warranty applies and satisfaction is guaranteed.