Helmets, mouthguards: Is there 'concussion-proof' equipment for fall sports?
NFL's use of Guardian padded helmet caps in camp draws support and skepticism - The Athletic
More padding the issue of concussions and better helmets
New Device Could Help Limit Concussions In Practice NBC, 56% OFF
Guardian Cap Results: “Exceeded Our Expectations”
Guardian Caps are the latest effort to address CTE, football concussion concerns
Guardian Caps are the latest effort to address CTE, football concussion concerns
Football Guardian Caps (Generation 2)
What are Guardian Caps? Why is the NFL wearing them? (NewsELA)