ORLANDO, Florida – Adding to their extensive lineup of irons, Mizuno Golf has introduced the Pro S-1, a channel-back design model forged from a single billet of mild carbon steel. MIZUNO PRO S-1 IRONS Better player category Forged 1025E mild carbon steel Channel back design Copper underlay Nickel chrome satin finish Stock lofts:5-iron 27°, pitching […] Source