Georgia players using Guardian Caps
Concussions: Can cap keep football players' heads in game? – Orange County Register
Football Helmet Shell Add-On Testing
Guardian Caps, a soft-shell helmet cover, among CFL's new player-safety initiatives
Safety first: Lopers to wear padded caps in practice to prevent concussions
NWT Guardian Cap - Soft-Shell Protective Helmet Cover Red Free Shipping
NFL executive hints that Guardian Caps could eventually be worn in games, along with position-specific helmets
Guardian Caps Guardian Sports
NFL Mandates Guardian Caps During Training Camp - Team Insight
Guardian Cap - Soft-Shell Helmet Cover for Football and Lacrosse - Reduces Impact and Protects Helmets - One Size Fits All for Youth, High School and College Programs - Navy
Guardian Cap - Soft-Shell Protective Helmet Cover – Mario Luna Football
Eagles players on Guardian Caps: 'We look a little goofy,' but all for safety
Guardian Caps - Are the soft-shelled football helmet covers effective at limiting head injuries? - ESPN
Guardian Caps: NFL requires use of helmet cover at training camps to reduce head injuries
The Guardian Cap is the leading soft shell helmet cover engineered for impact reduction. It brings a padded, soft-shell layer to the outside of the, By Guardian Innovations