Eagles players on Guardian Caps: 'We look a little goofy,' but all for safety
How one Mass. high school is using Guardian Caps
What Pros Wear: Guardian Caps What are Those Helmet Covers Being Worn in Practice? - What Pros Wear
What Pros Wear: Guardian Caps What are Those Helmet Covers Being Worn in Practice? - What Pros Wear
Large Bubble Helmets Are Guardian Caps, NFL's New Safety Measure
Could Guardian Caps be used in games? - NBC Sports
NFL hopes to reduce head injuries with helmet experiment
Bellmore-Merrick athletics debuts new guardian caps, Herald Community Newspapers
As NFL mandates Guardian caps in practice, area high school football teams have been using them for years, Sports
NFL mandates use of Guardian Caps for training camp in 2022 - Cincy Jungle