EXPLAINER: NFL using helmet caps for player safety, research
NFL executive hints that Guardian Caps could eventually be worn in games, along with position-specific helmets
Guardian Caps', NFL's Most Recent Attempt At Preventing Head Injuries
NFL executive hints that Guardian Caps could eventually be worn in games, along with position-specific helmets
Guardian Caps a fit for Park Wolfpack - Cottage Grove Journal
NFL reveals data of rise in concussions for 2022 season
As NFL mandates Guardian caps in practice, area high school football teams have been using them for years, Sports
FOOTBALL SAFETY FOR DUMMIES: Innovations to Reduce Effects of Concussi – 2nd Skull, Inc.
NFL 2023 Season Guardian Caps Mandate Supported By 52% Concussion Drop – Sports Techie