N.F.L.'s Release of Data on Helmet Tests Raises Concerns - The New York Times
Padded helmet cover shows little protection for football players - Scope
Large Bubble Helmets Are Guardian Caps, NFL's New Safety Measure
Steelers debut new, safer helmets for off-season training
This Helmet Will Save Football. Actually, Probably Not. - The New York Times
NFL's Safest Helmets Absorb Impact With 3D Printing Instead Of Foam
Many NFL Players Still Using Schutt, Riddell Helmets Over Newer, Safer Options
Helmet Laboratory Testing Performance Results
NFL, NFLPA Release 2021 Helmet Laboratory Testing Performance Results
NFL to test new position-specific helmet designed for pros - Sentinel Colorado
The NFL calls Vicis Zero1 helmets the safest yet
Helmet FE modelling and simulation: (a) Location and direction of