NFL players wear Guardian Caps to reduce head trauma during training camp
NFL players wear Guardian Caps to reduce head trauma during training camp
NFL Chief Medical Officer Says Guardian Caps Not Coming To Games
Large Bubble Helmets Are Guardian Caps, NFL's New Safety Measure
High school football teams go soft in the fight against brain injuries
Puffy, spongy Guardian Caps could help curb NFL head injuries - The Washington Post
NFL executive hints that Guardian Caps could eventually be worn in games, along with position-specific helmets
The story behind those soft-shell puffy Guardian Caps players have been wearing
The story behind those soft-shell puffy Guardian Caps players have been wearing
Guardian Caps - Are the soft-shelled football helmet covers effective at limiting head injuries? - ESPN
NFL executive hints that Guardian Caps could eventually be worn in games, along with position-specific helmets
NFL report: concussions dropped 50 PERCENT when players wore new 'Guardian Caps' over the summer
Guardian Caps', NFL's Most Recent Attempt At Preventing Head Injuries
The story behind those soft-shell puffy Guardian Caps players have been wearing