Large Bubble Helmets Are Guardian Caps, NFL's New Safety Measure
FILE - Indianapolis Colts running back D'Vonte Price (27) runs a drill during practice at the NFL team's football training camp in Westfield, Ind., Tuesday, Aug. 2, 2022. Guardian Caps, the mushroom-like
Eagles Notes: New Guardian Caps get mixed reviews – Delco Times
What is the NFL guardian cap and how does it work? – NBC Sports Bay Area & California
NFL executive hints that Guardian Caps could eventually be worn in games, along with position-specific helmets
EXPLAINER: NFL using helmet caps for player safety, research
What are NFL players wearing on their helmets at training camp and how do they work? - The Mirror US
NFL report: concussions dropped 50 PERCENT when players wore new 'Guardian Caps' over the summer
NFL hopes to reduce head injuries with helmet experiment
Cowboys seen wearing protective, NFL mandated Guardian Caps at OTAs
Puffy Guardian Caps Could Reduce NFL Player Concussions