EXPLAINER: NFL using helmet caps for player safety, research
Guardian Caps Guardian Sports
NFL CMO Dr. Allen Sills explains importance of mandated guardian
Steelers QB Kenny Pickett turning to new helmet technology to help
Guardian Cap Use a Concern for Watt, Saleh Early in Training Camp
What are Guardian caps? See the NFL's latest head protection
Funky-Looking Guardian Caps Rejected by NFL for Regulation Play
What are Guardian Caps? NFL's latest padded helmets for added safety
Guardian Cap Debuts at Training Camps League-wide
Eagles players on Guardian Caps: 'We look a little goofy,' but all