The Mizuno JPX 800 is the first iron to utilize Mizuno"s JPX technology in the United States. JPX technology combines MAX COR Technology with a Hot Metal Face construction and an exotic pocket cavity to meet the maximum allowable COR limits for energy transfer in irons. The 4-7 irons have MAX COR construction with a low and deep CG for optimal forgiveness and distance, while the 8-PW irons have deep pocket cavities for maximum forgiveness and improved accuracy. The gap and sand wedges each feature a solid power bar design that maximizes control and accuracy.