Guardian Caps Guardian Sports
Helmets don't eliminate concussions. It's time for the NFL to ditch them, NFL
With concussions at forefront of minds, helmet designs more important
Building a safer football helmet, Waterloo News
Light helmet design's effectiveness pits company versus NFL, NFLPA and their testing - The Athletic
New Football Helmet Could Save the Sport
NFL hopes to reduce head injuries with helmet experiment
Future of football safety could come down to research at Riddell
Built By Data: NFL Helmet Innovation
Football Turns to Helmet Technology to Tackle Head Injuries
Helmet Co. Thinking Ahead – LIGHT Helmets
Unprecedented Rate Of Improvement Stimulated In Helmet Industry, New Standard Set For 'Top-Performing' Helmet Models Worn By NFL Players