How a soft-shell helmet is limiting the risk of concussions at Rutgers football camp
Guardian Football Caps XT, Light Silver White / OFSA
NFL executive hints that Guardian Caps could eventually be worn in games, along with position-specific helmets
So what exactly is that black padding on the Syracuse football helmets seen during practice?
Padded helmet cover shows little protection for football players - Scope
Guardian Cap Use a Concern for Watt, Saleh Early in Training Camp - Sports Illustrated
Guardian Cap - Soft-Shell Protective Helmet Cover : Football Helmets : Sports & Outdoors
The impact of 'Guardian Caps' on player safety
NFL exec suggests Guardian Caps worn to protect players during practices could one day debut in games
Guardian Cap used by football teams to protect against head injury – The Denver Post
Guardian Caps: The new helmets worn by several NFL teams
Notebook Jets HC Robert Saleh Assesses the Guardian Helmet
DWU, Augie find unintended benefits of protective helmet cover usage - Mitchell Republic
Why Alabama football players are wearing padded helmets in practice
Guardian Caps: NFL requires use of helmet cover at training camps to reduce head injuries