What are your thoughts on the new VICIS helmets in the NFL? : r/nfl
Everything you need to know about the NFL's helmet guidelines and restrictions - Canal Street Chronicles
First QB helmet designed to help reduce concussions approved by NFL, NFLPA
Everything you need to know about the VICIS Zero 2
How Vicis Built The Zero1, The Futuristic Football Helmet Saving the NFL
New Vicis Zero2 Trench Adult Football Helmet w/ Titanium Facemask
The NFL calls Vicis Zero1 helmets the safest yet
Big Changes To NFL Helmets Coming Soon? - Daily Norseman
NFL, NFLPA approve new helmets for quarterbacks in latest step to combat concussions
The Safest Football Helmet Is Not Yet a Hit in the NFL - WSJ
Vicis is out of business, but NFL commercial features high-tech football helmet during playoffs – GeekWire