Guardian Caps - Are the soft-shelled football helmet covers
For Giants and the NFL, it's the Summer of Guardian Caps - Newsday
High school football teams go soft in the fight against brain injuries
Puffy, spongy Guardian Caps could help curb NFL head injuries
The story behind those soft-shell puffy Guardian Caps players have
High school football teams go soft in the fight against brain injuries
Guardian Caps Guardian Sports
What are Guardian Caps? Shadow Hills football using new device to
Coverage of the NFL in Guardian Caps