Latest in football helmet technology comes to Battle Ground - The Columbian
Guardian Cap debuts during minicamps in effort to reduce avoidable head contact
Patriots news: Mac Jones looks good in first joint practice with Packers - Pats Pulpit
NFL hopes to reduce head injuries with helmet experiment
NFL players experiment with 'Guardian Caps' to protect heads
Steelers QB Kenny Pickett turning to new helmet technology to help avoid further concussions in 2023, National Sports
NFL Training Camp: 12 photos of players wearing the new Guardian Caps
NFL CMO Dr. Allen Sills explains importance of mandated guardian caps during training camp
Guardian Caps debut at training camps throughout NFL
Analysis: Injuries to key NFL players are piling up, making depth even more important
Large Bubble Helmets Are Guardian Caps, NFL's New Safety Measure
Biggest Storylines at Ravens 2023 Training Camp