The X Series is about giving serious golfers total performance with enhanced forgiveness for the ultimate in confidence. The new X-20 Irons deliver in every way by offering technology, innovation and playability that will take your game to a new level. Using the Progressive Wall Reduction System, Callaway Golf engineers lowered the center of gravity (CG) 6 percent more than in the X-18 Irons. Progressive Wall Reduction means the CG gets progressively lower throughout the set. The CG is lowest in the long irons, helping you get the ball airborne more easily. With its traditional styling and Callaway Golf core technologies, the X-20 Irons provide the performance and forgiveness to play the game with enhanced confidence.

The Big Bertha 2008 Irons take forgiveness to new heights by integrating a set of clubs featuring the new i-brids™, clubs designed to replace hard-to-hit long irons. The i-brids combine the accuracy & control of irons with the forgiveness & versatility of a hybrid & are the most highly playable hybrid-like irons Callaway Golf could make.<br> <br> In the women's model the 4 through 7 iron is always going to be the i-brid version while the 8 thru lob wedge will be the traditional.<br> <br> On the men's model the 3 through 5 iron comes in both i-brid and traditional. <strong>Please look for the 'i' designation when making your selection.</strong>

For the player looking for a solid, game improvement iron that provides a proven combination of forgiveness and styling, Big Bertha irons from Callaway Golf remain the undisputed leader. All of the core technologies - S2H2, Tru-Bore, and VFT - that have made Callaway Golf irons the #1 irons in golf for eight straight years are part of the DNA of Big Bertha Irons. Add to those innovations extreme Notch Weighting, deeper 360-Degree Undercut Channel, and a constant width sole and you have a game-improvement iron that explodes with technology.

The Steelhead X-14 Irons feature stainless steel construction and Variable Face Thickness (VFT) Technology to ensure a precisely located center of gravity. Face thickness tapers strategically from top to bottom and heel to toe and is optimized in the long, mid and short irons. This helps promote more forgiveness and a greater resistance to twisting at impact.