Riddell launches Axiom, latest helmet to combat concussions
First QB Helmet Designed To Help Reduce Concussions Approved
NFL, players' union approve QB-specific helmet designed to reduce concussions – NBC Sports Bay Area & California
First quarterback helmet designed to reduce concussions approved by NFL
New Football Helmet Could Save the Sport
NFL approves use of FIRST quarterback-specific helmet, as league looks to reduce concussions
First QB helmet designed to help reduce concussions, Sports
Riddell Unveils Overhauled New Football Helmet SpeedFlex - ABC News
NFL, NFLPA Approve QB Helmet - Team Insight