Football helmets have improved but are far from 'concussion proof' – San Bernardino Sun
NFL, NFLPA ban 10 helmet models
Named top-ranked helmet by NFL & NFLPA helmet laboratory testing Virginia Tech 5-Star helmet; ranked 2nd among 28 helmets tested with a 0.73 score
VICIS ZERO2 Football Helmet, SC-223-S Facemask Attached, Black, Medium
Coming to an NFL game near you, the Zero1, a helmet that helps guard against brain injuries
Vicis high-tech helmets take top 3 spots in NFL's annual performance ranking of equipment – GeekWire
Behind the downfall of helmet darling VICIS: Market barriers, eroding cash and a '$1,000 paperweight' - The Athletic
Innovation produces football's helmet of the future
NFL helmet maker helping curb soldiers' head injuries, Sports
NFL Using The VICIS ZERO1 Football Helmet That Morphs On Impact To Reduce Head Injuries