Gear Dive: Mizuno's Chris Voshall speaks on Brooks Koepka's U.S. Open-winning irons

Summary: Mizuno’s Chief Engineer Chris Voshall on how Brooks Koepka was the one that almost got away, and why Mizuno irons are still secretly the most popular on Tour. Also, a couple of Tiger/Rory nuggets that may surprise a few people. It's an hour geek-out with one of the true gems in the club biz. Enjoy!