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
nfl helmets training camp
First a new red helmet, but could bigger uniform changes be on the way for the Houston Texans?
Guardian Caps debut at training camps throughout NFL
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Guardian Caps: Why some NFL players are wearing them in training camps
First a new red helmet, but could bigger uniform changes be on the way for the Houston Texans?
The story behind those soft-shell puffy Guardian Caps players have been wearing
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NFL Guardian (Caps) Of The Preseason Galaxy Safety Impact:, 53% OFF
Seeking to reduce head contact, NFL mandates use of Guardian Cap helmet for early portion of training camp - ESPN
Coverage of the NFL in Guardian Caps
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