Football helmets with outside padding get tryout at high schools | wgrz.com
Why Alabama football players are wearing padded helmets in practice - al.com
Guardian Caps: NFL requires use of helmet cover at training camps to reduce head injuries
What are Glacier Peak players wearing on their helmets? | HeraldNet.com
How to fix the hitting problem of the NFL - Page 2
More padding the issue of concussions and better helmets
Guardian Cap debuts during minicamps in effort to reduce avoidable head contact
Guardian Caps | Guardian Sports
Chicago Bears: Why players are wearing padded helmets
Colleges add Guardian football protective helmet cap - Sports Illustrated
Guardian Cap: What are and why the NFL asks this safety measure in helmets | Marca
What Pros Wear: Top 5 Helmets Rated by the NFL & NFLPA - What Pros Wear
Guardian Caps: Why some NFL players are wearing them in training camps
The Extra Yard: The Ins and Outs of an American Football Helmet - Stories - volumegraphics.com
NFL's use of Guardian padded helmet caps in camp draws support and skepticism - The Athletic
NFL players don Guardian Caps, designed to protect from concussion
Puffy, spongy Guardian Caps could help curb NFL head injuries - The Washington Post
Colleges add Guardian football protective helmet cap - Sports Illustrated
Why Alabama football players are wearing padded helmets in practice - al.com
Concussions are a huge issue in football. Outer-padded helmets could go a long way toward solving it. - ESPN
NFL's use of Guardian padded helmet caps in camp draws support and skepticism - The Athletic
Pittsburgh Steelers Players React to New Guardian Helmets - Sports Illustrated Pittsburgh Steelers News, Analysis and More
Some Broncos Linemen Appear At Training Camp With Unusual Extra Padding On Outside Of Helmets - CBS Colorado
What are those caps football players are wearing?
Large Bubble Helmets Are Guardian Caps, NFL's New Safety Measure
Guardian Caps - Are the soft-shelled football helmet covers effective at limiting head injuries? - ESPN
So what exactly is that black padding on the Syracuse football helmets seen during practice? - syracuse.com
Guardian Caps | Guardian Sports
