$2 Million in NFL Funding Now Available to Help Innovators Create a New, Top-Performing Football Helmet for Submission to the NFL Helmet Challenge
Vicis unveils revamped high-tech helmet under new ownership following tumultuous startup journey – GeekWire
Accelerometers Could Finally Fix the NFL's Concussion Crisis
Football Concussions: Prevention, Diagnosis & Recovery
Guardian Caps: NFL requires use of helmet cover at training camps to reduce head injuries
Helmet safety: Inside the complicated equipment industry - Sports Illustrated
Football Concussions: Prevention, Diagnosis & Recovery
Why Is It So Hard to Stop Sports Concussions?
Football Concussions: Prevention, Diagnosis & Recovery
High-tech helmets designed to lower risk of concussions make NFL debut - The Washington Post
Football helmet with liquid padding may prevent concussions
Once shunned by NFL, 'disruptive' helmet inventor believes his time has come
Puffy, spongy Guardian Caps could help curb NFL head injuries - The Washington Post
Football helmet maker butting heads with big industry players