Football Guardian Cap draws mixed reviews from players, experts for safety effectiveness - The Daily Tar Heel
NFL hopes to reduce head injuries with helmet experiment
Guardian Caps Guardian Sports
The Coat of Arms Added Protection or False Security: Football Tests New Guardian Caps to Prevent Concussions
As NFL mandates Guardian caps in practice, area high school football teams have been using them for years, Sports
NFL on FOX - Guardian caps have significantly helped with the players health and safety during training camp this season. 🙏
NFL says positions wearing Guardian Caps saw 52% decrease in concussions - NBC Sports
What's with padded helmet caps teams are wearing
What are Guardian Caps? Shadow Hills football using new device to reduce head injuries