Callaway Golf’21 Apex Pro Hybrid Rescue Club. The Callaway Golf’21 Apex Pro Hybrids are designed with Callaway’s advanced hybrid innovations to deliver total performance in a premium design. Featuring jailbreak technology and enhanced launch with a forged face cup made from carpenter 455 Steel, Apex is designed for increased ball speed at every impact location. The Forged 455 Steel provides outstanding strength and flexibility while the Face Cup provides speed and spin consistency across the face. Fast Ball Speed From A. Designed Flash Face SS21. Controlled ball flight and workability from precision shaping. Jailbreak technology promotes faster ball speeds for longer distance. Apex Pro offers the look of an iron at address that highly skilled players prefer to see from their hybrids. Visit our store for more golf clubs, apparel, & accessories. TOP BRANDS Callaway Golf.