The Callaway Big Bertha iron is a wide club in every sense of the word. It has a wide sole, a thick top line and a wide sweet spot, and even its length from heel to toe is wider than average. In a previous generation, this would be called an "oversize" clubhead. The positive side is the larger sweet spot and balanced weight distribution that promotes a solid hit and high launch angle.
Callaway continues the wide theme offering golfers an option to have matching long irons in the Big Bertha set or to replace them with what Callaway calls its i-brids. The i-brids that replace the 3-, 4- and 5-irons have even wider soles and more extreme perimeter weighting, making them easy to hit iron-style hybrids rather than traditional irons.
Featuring a fully optimized set designed to keep 10-yard separations between each of these stainless steel irons, the Big Bertha has one of the largest, most forgiving sweet spots in golf. The center of gravity is dropped lower and back to promote a higher, softer trajectory for players who need the extra help.
The Callaway Big Bertha irons come standard with the Callaway uniflex steel shaft. This lightweight steel promotes consistency throughout the set and comes in regular, stiff and senior flexes. Callaway Big Bertha graphite is also offered as a standard option, and a wide variety of other shafts were also available on a custom basis.