The Wilson Staff Fi5 Irons are a traditional forged iron featuring progressive weighting and a thin top line and sole for any low handicap player looking for maximum feedback and workability in their irons. The weighting of the Fi5 progressively moves the CG location from lower in the long irons to higher in the short irons. This is accomplished by concentrating weighting in the sole of the long irons, perimeter cavity back weighting in the mid irons, and pure muscleback weighting in the short irons. Forged by 8620 mild carbon steel, the Fi5 Irons provide a beautiful feel and response at impact.