Virginia Tech lab releases first safety ratings for youth football helmets
Guardian Caps - Are the soft-shelled football helmet covers
An Idiot's Guide to the Antonio Brown Helmet Grievance - The Ringer
Built By Data: NFL Helmet Innovation
Guardian Caps - Are the soft-shelled football helmet covers
College programs take proactive approach to helmet safety
NFL's use of Guardian padded helmet caps in camp draws support and
NFL Presents: League-wide Guardian Cap Use to Reduce Head Impacts
NFL approves new targeting rule - The Boston Globe
Football helmets are creating more problems than they solve