For decades, football players have worn rigid, unyielding helmets that protected the skull but did little to prevent concussions. To address this shortcoming, Riddell built a smarter helmet. Available to NFL and college teams, and soon youth and high school players, the new SpeedFlex is designed to diminish the impact forces of a hard hit. It will also alert coaches on the sideline if a blow was powerful enough to potentially cause a head injury. At a time when the sport has been hammered with bad news, this might be a game changer.