NFL report: concussions dropped 50 PERCENT when players wore new 'Guardian Caps' over the summer
NFL: Concussions dropped by more than 50% among players who wore Guardian Caps during summer
Guardian Cap: What are and why the NFL asks this safety measure in helmets
NFL's use of Guardian padded helmet caps in camp draws support and skepticism - The Athletic
900+ Sports Techie ideas in 2023 online community, techies, sports
NFL to Expand Guardian Cap Wear in 2023 - Steelers Now
NFL introduces Guardian Caps across league to limit number of brain injuries in preseason
Lee Hanson on LinkedIn: NFL CMO Dr. Sills on Guardian Caps Mandate >> Guardian Sports