NFL players wear Guardian Caps to reduce head trauma during training camp
Guardian cap' to prevent head injuries mandated for practices, CFL says
NFL hopes to reduce head injuries with helmet experiment
NFL CMO Dr. Allen Sills explains importance of mandated guardian caps during training camp
College football safety gets shaped by research, including possible head-hit counts
Florio PFT] The Guardian Cap apparently works. But if a player asks to wear it in a game, the league would say no. : r/nfl
Camp report: Kyle Pitts makes his return as Falcons begin 2023 training camp
As NFL mandates Guardian caps in practice, area high school football teams have been using them for years, Sports
Guardian Caps - Are the soft-shelled football helmet covers effective at limiting head injuries? - ESPN
Guardian Caps - Are the soft-shelled football helmet covers effective at limiting head injuries? - ESPN
Asked and Answered: Aug. 3