Charles Howell III has been spotted with new Mizuno irons, with some reports specifically mentioning the MP-59 model. However, there is some uncertainty about the exact model he is using, as other reports mention different Mizuno models, such as the MP-64, MP-69, MP-H5, and MP-15. The focus of the reports appears to be on golf equipment, with various outlets reviewing and discussing different iron models from Mizuno and other manufacturers.