Is the extra white padding on their helmets for practice a new safety precaution this year? I don't recall seeing these previous years. : r /GreenBayPackers
Could Guardian Caps be used during NFL games for player safety?, Pro Football Talk
NFL executive hints that Guardian Caps could eventually be worn in games, along with position-specific helmets
Football Guardian Caps XT (Current Model) – Guardian Sports
NFL mandates use of Guardian Caps for training camp in 2022 - Cincy Jungle
Ravens Embrace the Funny-Looking Guardian Helmets - Sports Illustrated Baltimore Ravens News, Analysis and More
Funky-Looking Guardian Caps Rejected by NFL for Regulation Play, OK'd for Practice - Core77
Complaints begin regarding Guardian Caps, despite one important hidden benefit - NBC Sports
Florio PFT] The Guardian Cap apparently works. But if a player asks to wear it in a game, the league would say no. : r/nfl
NFL executive hints that Guardian Caps could eventually be worn in games, along with position-specific helmets