Guardian Caps debut at training camps throughout NFL
NFL training camp: Top questions, roster projections for all teams in 2023 - ESPN
Ravens Embrace the Funny-Looking Guardian Helmets - Sports Illustrated Baltimore Ravens News, Analysis and More
Steelers QB Kenny Pickett turning to new helmet technology to help avoid further concussions in 2023, National Sports
Guardian Caps - Are the soft-shelled football helmet covers effective at limiting head injuries? - ESPN
What are the padded helmets players are wearing at NFL training camps?
Sam Howell's Axiom helmet puts him a step ahead in vision, comfort and protection
Why NFL Stars Are Showing Up to NFL Training Camps—and Not Practicing - WSJ
Detroit Lions unveil alternate helmet
What is a Guardian Cap? Meet the NFL's newest safety measure
Hockenson hopes to build on last season's success