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[Smith] NFL says positions wearing Guardian Caps saw 52% decrease in concussions : r/nfl
Coverage of the NFL in Guardian Caps
The story behind those soft-shell puffy Guardian Caps players have been wearing
NFL's use of Guardian padded helmet caps in camp draws support and skepticism - The Athletic
What are Guardian Caps? Shadow Hills football using new device to reduce head injuries
Steelers Wear Guardian Helmet Covers at Minicamp - Steelers Now
The story behind those soft-shell puffy Guardian Caps players have been wearing
weekend open thread - February 18-19, 2023 — Ask a Manager
Guardian Caps', NFL's Most Recent Attempt At Preventing Head Injuries
High school football teams go soft in the fight against brain injuries