The story behind those soft-shell puffy Guardian Caps players have been wearing
NFL's use of Guardian padded helmet caps in camp draws support and skepticism - The Athletic
Guardian Caps - Are the soft-shelled football helmet covers effective at limiting head injuries? - ESPN
Puffy, spongy Guardian Caps could help curb NFL head injuries - The Washington Post
NFL players experimenting with 'Guardian Caps' to prevent head injuries
The story behind those soft-shell puffy Guardian Caps players have been wearing
WFT News: Washington Commanders Media Links Roundup - Hogs Haven
The story behind those soft-shell puffy Guardian Caps players have been wearing
NFL says positions wearing Guardian Caps saw 52% decrease in concussions - NBC Sports
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
Large Bubble Helmets Are Guardian Caps, NFL's New Safety Measure
Guardian Cap debuts during minicamps in effort to reduce avoidable head contact
The story behind those soft-shell puffy Guardian Caps players have been wearing