Virginia Tech lab releases first safety ratings for youth football helmets
Can a Better Football Helmet Save Your Kid's Brain? - Washingtonian
Virginia Tech lab releases first safety ratings for youth football helmets
Helmet Innovation: More and Better Choices, Fewer Concussions
The Coat of Arms Added Protection or False Security: Football Tests New Guardian Caps to Prevent Concussions
Professor monitors concussions at Super Bowl - The Johns Hopkins News-Letter
This might be a dumb question, but why do they wear these extra pads on their helmets for camp but remove them for games? : r/KansasCityChiefs
New Schutt Helmet: Vengeance (Rev.) – The Concussion Blog
Louisiana Football Helmets Help Keep Players Cool - ASME
Guardian Caps Guardian Sports
Coverage of the NFL in Guardian Caps
NFL executive hints that Guardian Caps could eventually be worn in games, along with position-specific helmets
NFL approves new targeting rule - The Boston Globe
Puffy, spongy Guardian Caps could help curb NFL head injuries - The Washington Post