NFL's use of Guardian padded helmet caps in camp draws support and skepticism - The Athletic
John's Journal: Park Football Team Is All In On Concussion Safety, News
NFL players experiment with 'Guardian Caps' to protect heads - The San Diego Union-Tribune
Guardian Caps leave some NFL players and coaches with concerns: 'You feel like a bobblehead'
Queen's Football utilizing Guardian Caps - Queen's University Athletics
UGA football outfits players in Guardian Caps to try to reduce impacts.
NFL on FOX - Guardian caps have significantly helped with the players health and safety during training camp this season. 🙏
Do Padded Helmet Covers Actually Protect Football Players? - The Good Men Project
Can new technology help cut down on concussions? (video)
NFL players wear Guardian Caps to reduce head trauma during training camp
NFL hopes to reduce head injuries with helmet experiment
NFL] When worn, the Guardian Cap results in at least a 10% reduction in severity of impact if one player is wearing it, and at least a 20% reduction in impact if