Joe Burrow's new helmet is newly designed to help address old weak spots
Virginia Tech Ranks the VICIS Zero1 as the Safest Youth Football Helmet
The Safest Football Helmet Is Not Yet a Hit in the NFL - WSJ
The N.F.L.'s Favorite Helmet Maker Is in Financial Trouble - The New York Times
Football Helmets for 2017 - Riddell and Schutt Helmet Technology
Finite Element Models: New Tools for Innovation in Football Helmet Design
NFL teams are using a new, safer helmet — the Vicis Zero1
This Football Helmet Crumples—and That's Good
Can Custom-Fit Football Helmets Protect Athletes From Brain Trauma?, Chicago News