Bellmore-Merrick athletics debuts new guardian caps, Herald Community Newspapers
NFL players wear Guardian Caps to reduce head trauma during training camp
'Guardian cap' to prevent head injuries mandated for practices, CFL says
NFL mandates use of Guardian Caps for training camp in 2022 - Cincy Jungle
Players, coaches react to mandatory use of Guardian Caps
Guardian Caps - Are the soft-shelled football helmet covers effective at limiting head injuries? - ESPN
Guardian Caps Exceed NFL's Expectations - Guardian Sports
NFL players wear Guardian Caps to reduce head trauma during training camp
Guardian Caps: Why some NFL players are wearing them in training camps
NFL report: concussions dropped 50 PERCENT when players wore new 'Guardian Caps' over the summer
Guardian Caps are the latest effort to address CTE, football concussion concerns
EXPLAINER: NFL using helmet caps for player safety, research - The San Diego Union-Tribune