Padded helmet cover shows little protection for football players - Scope
Accelerometers Could Finally Fix the NFL's Concussion Crisis
Engineering students advance prototype for NFL Helmet Challenge » Liberty News
Football Tech to Protect Players, Innovation
3 Ingenious innovations from the NFL's Helmet Challenge
Large Bubble Helmets Are Guardian Caps, NFL's New Safety Measure
Xenith Unveils Shadow XR, a New Football Helmet Made With UK's Rheon
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
Built By Data: NFL Helmet Innovation
Guardian Caps', NFL's Most Recent Attempt At Preventing Head Injuries
AT&T unveils 5G-connected football helmet to enhance communication between deaf players and coaches
Riddell's Axiom could be breakthrough helmet for football