Jeffrey Westbrook Welcome to MH Certified, where Men’s Health puts its stamp of approval on the best products you need to look, feel, and live better than ever before. The Hoka One One Mach 4 is a running shoe designed for long training runs and speedy sessions alike, with springy foam and a unique extended heel shape. The Mach 4 uses some of the aspects of Hoka One One's high performance models, without the tech features that would make them inaccessible to more casual runners. The shoes look damn good, too, and lots of people noticed them during the testing process.