How Auburn football player landed NIL deal with anti-concussion collar
Guardian Caps - Are the soft-shelled football helmet covers
[Smith] NFL says positions wearing Guardian Caps saw 52
NFL training camps: Guardian Cap players are wearing over helmets, why
Guardian Caps: Why some NFL players are wearing them in training camps
NFL reports reduction in concussions among players who wore
Guardian Caps - Are the soft-shelled football helmet covers
Guardian Cap Debuts at Training Camps League-wide
NFL hopes to reduce head injuries with helmet experiment – The
NFL CMO Dr. Allen Sills explains importance of mandated guardian
NFL Players Experiment With 'Guardian Caps' to Protect Heads – NBC
Funky-Looking Guardian Caps Rejected by NFL for Regulation Play
EXPLAINER: NFL using helmet caps for player safety, research
Coverage of the NFL in Guardian Caps