Guardian Cap Results: “Exceeded Our Expectations”
Arizona Cardinals defensive end J.J. Watt not fan of the new league-mandated Guardian Caps on helmets
As NFL mandates Guardian caps in practice, area high school football teams have been using them for years, Sports
New Football Helmet Could Save the Sport
What Pros Wear: Guardian Caps What are Those Helmet Covers Being Worn in Practice? - What Pros Wear
Puffy, spongy Guardian Caps could help curb NFL head injuries - The Washington Post
NFL announces more steps to reduce head injuries
Guardian Caps Guardian Sports
Large Bubble Helmets Are Guardian Caps, NFL's New Safety Measure
Asked and Answered: Aug. 8
What Pros Wear: Guardian Caps What are Those Helmet Covers Being Worn in Practice? - What Pros Wear
Padded helmet cover shows little protection for football players - Scope