By combining a larger hybrid head, an ultra-thin steel face and longer shaft length, the Redline Super Hybrids deliver faster ball speeds and more distance than traditional hybrids. * The Redline irons have been engineered to take the best attributes of hybrid design and apply them to the irons in order to increase distance. * A tri-level sole design reduces turf interference for ease of play from the tee, fairway or rough and 45 grams of mass placed low and back improves forgiveness. * A more satisfying feel and sound comes from Thermoplastic Polyurethane (TPU) inserts. Each iron in the Redline set has also been individually optimized to work together and outperform traditional irons. * With progressive topline thickness and increased sole camber throughout, each iron is fully integrated with the next to maximize performance.