NFL report: concussions dropped 50 PERCENT when players wore new 'Guardian Caps' over the summer
Could Guardian Caps be used in games? - NBC Sports
Why are NFL players wearing padding on helmets at training camp?
What is the NFL guardian cap and how does it work? – NBC Sports Bay Area & California
Here's why some Patriots players are wearing caps over their helmets during training camp
NFL mandates use of Guardian Caps for training camp in 2022 - Cincy Jungle
Unpopular guardian caps could provide false sense of security
Giants react to NFL's new 'Guardian Caps' at training camps - Big Blue View
Guardian Caps: What are they and why are NFL players wearing them? - Sactown Sports
NFL CMO Dr. Allen Sills explains importance of mandated guardian caps during training camp
EXPLAINER: NFL using helmet caps for player safety, research - The San Diego Union-Tribune
What are Guardian caps? See the NFL's latest head protection device - Deseret News
Robert Saleh dislikes the new Guardian Caps: And he has a point