EXPLAINER: NFL using helmet caps for player safety, research
Have you seen the strange helmets Cowboys players are wearing in
Why are NFL players wearing padding on helmets at training camp?
NFL hopes to reduce head injuries with helmet experiment
Guardian Caps: NFL requires use of helmet cover at training camps
NFL CMO Dr. Allen Sills explains importance of mandated guardian
What are those funny-looking soft caps on NFL helmets during camp
Steelers linebacker speaks cautiously, but he's clearly not a fan
It doesn't matter how the guardian helmets look it matters if they
What are Guardian Caps? NFL's latest padded helmets for added safety
Funky-Looking Guardian Caps Rejected by NFL for Regulation Play
Guardian Cap Use a Concern for Watt, Saleh Early in Training Camp
More padding the issue of concussions and better helmets
What Pros Wear: Guardian Caps What are Those Helmet Covers Being