NFL's use of Guardian padded helmet caps in camp draws support and

Some think the extra layer makes a positive difference while others believe it could have a negative effect.

NFL executive hints that Guardian Caps could eventually be worn in games, along with position-specific helmets , Helmet Padding

Packers share thoughts on wearing Guardian Caps at camp

Coverage of the NFL in Guardian Caps

NFL's use of Guardian padded helmet caps in camp draws support and

Guardian Caps', NFL's Most Recent Attempt At Preventing Head Injuries

Why are NFL players wearing padding on helmets at training camp?

Packers share thoughts on wearing Guardian Caps at camp

NFL's use of Guardian padded helmet caps in camp draws support and

Coverage of the NFL in Guardian Caps

Why are NFL players wearing padding on helmets at training camp?

NFL CMO Dr. Allen Sills explains importance of mandated guardian caps during training camp

The story behind those soft-shell puffy Guardian Caps players have been wearing

The Athletic

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Coverage of the NFL in Guardian Caps