This Helmet Will Save Football. Actually, Probably Not. - The New York Times
The Digital Athlete aims to prevent injuries to NFL players - Cleveland Business Journal
The NFL Helmet Challenge: Building a Next Generation Helmet
Arizona Cardinals unveil alternate black helmets with black facemask and metallic 3-D birdhead for 2022 season
Helmet Laboratory Testing Performance Results
What material are NFL helmets made of? - AS USA
3 Companies Split $1.55 Million In NFL Helmet Challenge
NFL Helmet Challenge and DfAM eSeries, nTop
NFL Helmet Challenge Raises the Bar for Helmet Technology and Performance, Awards $1.55 Million in Grant Funding to Help New Models Get on Field Faster
The Extra Yard: The Ins and Outs of an American Football Helmet - Stories
NFL returns social justice helmet decals, end zone stencils
Montreal-based consortium one of three winners of NFL helmet safety challenge (The Gazette) - Spinologics
Football STEM Challenge! — Vivify STEM
Football helmet prototype earns second-place prize in NFL's '1st and Future' competition » Liberty News