Puffy, spongy Guardian Caps could help curb NFL head injuries - The Washington Post
What would an anti-concussion helmet look like?
Guardian Caps - Are the soft-shelled football helmet covers effective at limiting head injuries? - ESPN
More padding the issue of concussions and better helmets
Dal's high-tech football helmets can help detect concussions from the sidelines | CBC News
Guardian Cap debuts during minicamps in effort to reduce avoidable head contact
First QB helmet designed to help reduce concussions approved | AP News
How a game-changing helmet design could prevent concussions - CBS News
Guardian Caps | Guardian Sports
Helmet heads: Soccer headgear has skeptics, believers
NFL: Concussions dropped by more than 50% among players who wore Guardian Caps during summer - CBSSports.com
Helmet Add-ons Unlikely to Prevent Concussions | MedPage Today
NFL approves use of helmet designed to reduce concussions for quarterbacks - oregonlive.com
/cdn.vox-cdn.com/uploads/chorus_image/image/30673345/speedflex_quarter_view_lr__2_.0.jpg "New Riddell SpeedFlex football helmet pits technology vs. concussions - SBNation.com")
New Riddell SpeedFlex football helmet pits technology vs. concussions - SBNation.com
Wearing headgear for sport does not protect against concussion, Australian experts warn | Concussion in sport | The Guardian
This Helmet Will Save Football. Actually, Probably Not. - The New York Times
New Smart Helmet Could Spot Concussions in Real Time | Columbia Magazine
Do helmets protect against concussion? - Queensland Brain Institute - University of Queensland
New NFL Helmet Cuts Quarterback Concussion Risk—But Only 7% Better Than Older Models
Puffy, spongy Guardian Caps could help curb NFL head injuries - The Washington Post
Is this new helmet the answer to the NFL's concussion concerns?
Puffy Guardian Caps Could Reduce NFL Player Concussions | HowStuffWorks
Carolina Panthers NFL helmets training camp | wfmynews2.com
