Several NFLers to wear new VICIS helmet designed for linemen
NFL, NFLPA release results of annual helmet testing: Three previously approved models now prohibited
The NFL calls Vicis Zero1 helmets the safest yet
First QB helmet designed to help reduce concussions approved
Seattle's Vicis raises $15M to expand work on protective football helmet
NFL to test new position-specific helmet designed for pros - The Boston Globe
Vicis is out of business, but NFL commercial features high-tech football helmet during playoffs – GeekWire
Better helmets, sensored mouth guards part of effort to make football safer